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Mp00064: Permutations reversePermutations
St000423: Permutations ⟶ ℤResult quality: 100% values known / values provided: 100%distinct values known / distinct values provided: 100%
Values
[1] => [1] => 0
[1,2] => [2,1] => 0
[2,1] => [1,2] => 0
[1,2,3] => [3,2,1] => 0
[1,3,2] => [2,3,1] => 0
[2,1,3] => [3,1,2] => 0
[2,3,1] => [1,3,2] => 1
[3,1,2] => [2,1,3] => 0
[3,2,1] => [1,2,3] => 1
[1,2,3,4] => [4,3,2,1] => 0
[1,2,4,3] => [3,4,2,1] => 0
[1,3,2,4] => [4,2,3,1] => 0
[1,3,4,2] => [2,4,3,1] => 1
[1,4,2,3] => [3,2,4,1] => 0
[1,4,3,2] => [2,3,4,1] => 1
[2,1,3,4] => [4,3,1,2] => 0
[2,1,4,3] => [3,4,1,2] => 0
[2,3,1,4] => [4,1,3,2] => 1
[2,3,4,1] => [1,4,3,2] => 3
[2,4,1,3] => [3,1,4,2] => 1
[2,4,3,1] => [1,3,4,2] => 3
[3,1,2,4] => [4,2,1,3] => 0
[3,1,4,2] => [2,4,1,3] => 1
[3,2,1,4] => [4,1,2,3] => 1
[3,2,4,1] => [1,4,2,3] => 3
[3,4,1,2] => [2,1,4,3] => 2
[3,4,2,1] => [1,2,4,3] => 4
[4,1,2,3] => [3,2,1,4] => 0
[4,1,3,2] => [2,3,1,4] => 1
[4,2,1,3] => [3,1,2,4] => 1
[4,2,3,1] => [1,3,2,4] => 3
[4,3,1,2] => [2,1,3,4] => 2
[4,3,2,1] => [1,2,3,4] => 4
[1,2,3,4,5] => [5,4,3,2,1] => 0
[1,2,3,5,4] => [4,5,3,2,1] => 0
[1,2,4,3,5] => [5,3,4,2,1] => 0
[1,2,4,5,3] => [3,5,4,2,1] => 1
[1,2,5,3,4] => [4,3,5,2,1] => 0
[1,2,5,4,3] => [3,4,5,2,1] => 1
[1,3,2,4,5] => [5,4,2,3,1] => 0
[1,3,2,5,4] => [4,5,2,3,1] => 0
[1,3,4,2,5] => [5,2,4,3,1] => 1
[1,3,4,5,2] => [2,5,4,3,1] => 3
[1,3,5,2,4] => [4,2,5,3,1] => 1
[1,3,5,4,2] => [2,4,5,3,1] => 3
[1,4,2,3,5] => [5,3,2,4,1] => 0
[1,4,2,5,3] => [3,5,2,4,1] => 1
[1,4,3,2,5] => [5,2,3,4,1] => 1
[1,4,3,5,2] => [2,5,3,4,1] => 3
[1,4,5,2,3] => [3,2,5,4,1] => 2
Description
The number of occurrences of the pattern 123 or of the pattern 132 in a permutation.
Mp00066: Permutations inversePermutations
Mp00064: Permutations reversePermutations
St000428: Permutations ⟶ ℤResult quality: 77% values known / values provided: 77%distinct values known / distinct values provided: 100%
Values
[1] => [1] => [1] => 0
[1,2] => [1,2] => [2,1] => 0
[2,1] => [2,1] => [1,2] => 0
[1,2,3] => [1,2,3] => [3,2,1] => 0
[1,3,2] => [1,3,2] => [2,3,1] => 0
[2,1,3] => [2,1,3] => [3,1,2] => 0
[2,3,1] => [3,1,2] => [2,1,3] => 1
[3,1,2] => [2,3,1] => [1,3,2] => 0
[3,2,1] => [3,2,1] => [1,2,3] => 1
[1,2,3,4] => [1,2,3,4] => [4,3,2,1] => 0
[1,2,4,3] => [1,2,4,3] => [3,4,2,1] => 0
[1,3,2,4] => [1,3,2,4] => [4,2,3,1] => 0
[1,3,4,2] => [1,4,2,3] => [3,2,4,1] => 1
[1,4,2,3] => [1,3,4,2] => [2,4,3,1] => 0
[1,4,3,2] => [1,4,3,2] => [2,3,4,1] => 1
[2,1,3,4] => [2,1,3,4] => [4,3,1,2] => 0
[2,1,4,3] => [2,1,4,3] => [3,4,1,2] => 0
[2,3,1,4] => [3,1,2,4] => [4,2,1,3] => 1
[2,3,4,1] => [4,1,2,3] => [3,2,1,4] => 3
[2,4,1,3] => [3,1,4,2] => [2,4,1,3] => 1
[2,4,3,1] => [4,1,3,2] => [2,3,1,4] => 3
[3,1,2,4] => [2,3,1,4] => [4,1,3,2] => 0
[3,1,4,2] => [2,4,1,3] => [3,1,4,2] => 1
[3,2,1,4] => [3,2,1,4] => [4,1,2,3] => 1
[3,2,4,1] => [4,2,1,3] => [3,1,2,4] => 3
[3,4,1,2] => [3,4,1,2] => [2,1,4,3] => 2
[3,4,2,1] => [4,3,1,2] => [2,1,3,4] => 4
[4,1,2,3] => [2,3,4,1] => [1,4,3,2] => 0
[4,1,3,2] => [2,4,3,1] => [1,3,4,2] => 1
[4,2,1,3] => [3,2,4,1] => [1,4,2,3] => 1
[4,2,3,1] => [4,2,3,1] => [1,3,2,4] => 3
[4,3,1,2] => [3,4,2,1] => [1,2,4,3] => 2
[4,3,2,1] => [4,3,2,1] => [1,2,3,4] => 4
[1,2,3,4,5] => [1,2,3,4,5] => [5,4,3,2,1] => 0
[1,2,3,5,4] => [1,2,3,5,4] => [4,5,3,2,1] => 0
[1,2,4,3,5] => [1,2,4,3,5] => [5,3,4,2,1] => 0
[1,2,4,5,3] => [1,2,5,3,4] => [4,3,5,2,1] => 1
[1,2,5,3,4] => [1,2,4,5,3] => [3,5,4,2,1] => 0
[1,2,5,4,3] => [1,2,5,4,3] => [3,4,5,2,1] => 1
[1,3,2,4,5] => [1,3,2,4,5] => [5,4,2,3,1] => 0
[1,3,2,5,4] => [1,3,2,5,4] => [4,5,2,3,1] => 0
[1,3,4,2,5] => [1,4,2,3,5] => [5,3,2,4,1] => 1
[1,3,4,5,2] => [1,5,2,3,4] => [4,3,2,5,1] => 3
[1,3,5,2,4] => [1,4,2,5,3] => [3,5,2,4,1] => 1
[1,3,5,4,2] => [1,5,2,4,3] => [3,4,2,5,1] => 3
[1,4,2,3,5] => [1,3,4,2,5] => [5,2,4,3,1] => 0
[1,4,2,5,3] => [1,3,5,2,4] => [4,2,5,3,1] => 1
[1,4,3,2,5] => [1,4,3,2,5] => [5,2,3,4,1] => 1
[1,4,3,5,2] => [1,5,3,2,4] => [4,2,3,5,1] => 3
[1,4,5,2,3] => [1,4,5,2,3] => [3,2,5,4,1] => 2
[2,3,6,7,5,4,1] => [7,1,2,6,5,3,4] => [4,3,5,6,2,1,7] => ? = 19
[2,3,7,6,5,4,1] => [7,1,2,6,5,4,3] => [3,4,5,6,2,1,7] => ? = 19
[2,4,5,6,7,3,1] => [7,1,6,2,3,4,5] => [5,4,3,2,6,1,7] => ? = 21
[2,4,5,7,6,3,1] => [7,1,6,2,3,5,4] => [4,5,3,2,6,1,7] => ? = 21
[2,4,6,5,7,3,1] => [7,1,6,2,4,3,5] => [5,3,4,2,6,1,7] => ? = 21
[2,4,6,7,5,3,1] => [7,1,6,2,5,3,4] => [4,3,5,2,6,1,7] => ? = 22
[2,4,7,5,6,3,1] => [7,1,6,2,4,5,3] => [3,5,4,2,6,1,7] => ? = 21
[2,4,7,6,5,3,1] => [7,1,6,2,5,4,3] => [3,4,5,2,6,1,7] => ? = 22
[2,5,4,6,7,3,1] => [7,1,6,3,2,4,5] => [5,4,2,3,6,1,7] => ? = 21
[2,5,4,7,6,3,1] => [7,1,6,3,2,5,4] => [4,5,2,3,6,1,7] => ? = 21
[2,5,6,4,7,3,1] => [7,1,6,4,2,3,5] => [5,3,2,4,6,1,7] => ? = 22
[2,5,6,7,3,4,1] => [7,1,5,6,2,3,4] => [4,3,2,6,5,1,7] => ? = 21
[2,5,6,7,4,3,1] => [7,1,6,5,2,3,4] => [4,3,2,5,6,1,7] => ? = 24
[2,5,7,3,6,4,1] => [7,1,4,6,2,5,3] => [3,5,2,6,4,1,7] => ? = 19
[2,5,7,4,6,3,1] => [7,1,6,4,2,5,3] => [3,5,2,4,6,1,7] => ? = 22
[2,5,7,6,3,4,1] => [7,1,5,6,2,4,3] => [3,4,2,6,5,1,7] => ? = 21
[2,5,7,6,4,3,1] => [7,1,6,5,2,4,3] => [3,4,2,5,6,1,7] => ? = 24
[2,6,3,7,5,4,1] => [7,1,3,6,5,2,4] => [4,2,5,6,3,1,7] => ? = 19
[2,6,4,5,7,3,1] => [7,1,6,3,4,2,5] => [5,2,4,3,6,1,7] => ? = 21
[2,6,4,7,5,3,1] => [7,1,6,3,5,2,4] => [4,2,5,3,6,1,7] => ? = 22
[2,6,5,4,7,3,1] => [7,1,6,4,3,2,5] => [5,2,3,4,6,1,7] => ? = 22
[2,6,5,7,3,4,1] => [7,1,5,6,3,2,4] => [4,2,3,6,5,1,7] => ? = 21
[2,6,5,7,4,3,1] => [7,1,6,5,3,2,4] => [4,2,3,5,6,1,7] => ? = 24
[2,6,7,3,5,4,1] => [7,1,4,6,5,2,3] => [3,2,5,6,4,1,7] => ? = 20
[2,6,7,4,5,3,1] => [7,1,6,4,5,2,3] => [3,2,5,4,6,1,7] => ? = 23
[2,6,7,5,3,4,1] => [7,1,5,6,4,2,3] => [3,2,4,6,5,1,7] => ? = 22
[2,6,7,5,4,3,1] => [7,1,6,5,4,2,3] => [3,2,4,5,6,1,7] => ? = 25
[2,7,3,5,6,4,1] => [7,1,3,6,4,5,2] => [2,5,4,6,3,1,7] => ? = 18
[2,7,3,6,5,4,1] => [7,1,3,6,5,4,2] => [2,4,5,6,3,1,7] => ? = 19
[2,7,4,5,6,3,1] => [7,1,6,3,4,5,2] => [2,5,4,3,6,1,7] => ? = 21
[2,7,4,6,5,3,1] => [7,1,6,3,5,4,2] => [2,4,5,3,6,1,7] => ? = 22
[2,7,5,3,6,4,1] => [7,1,4,6,3,5,2] => [2,5,3,6,4,1,7] => ? = 19
[2,7,5,4,6,3,1] => [7,1,6,4,3,5,2] => [2,5,3,4,6,1,7] => ? = 22
[2,7,5,6,3,4,1] => [7,1,5,6,3,4,2] => [2,4,3,6,5,1,7] => ? = 21
[2,7,5,6,4,3,1] => [7,1,6,5,3,4,2] => [2,4,3,5,6,1,7] => ? = 24
[2,7,6,3,5,4,1] => [7,1,4,6,5,3,2] => [2,3,5,6,4,1,7] => ? = 20
[2,7,6,4,5,3,1] => [7,1,6,4,5,3,2] => [2,3,5,4,6,1,7] => ? = 23
[2,7,6,5,3,4,1] => [7,1,5,6,4,3,2] => [2,3,4,6,5,1,7] => ? = 22
[2,7,6,5,4,3,1] => [7,1,6,5,4,3,2] => [2,3,4,5,6,1,7] => ? = 25
[3,2,6,7,5,4,1] => [7,2,1,6,5,3,4] => [4,3,5,6,1,2,7] => ? = 19
[3,2,7,6,5,4,1] => [7,2,1,6,5,4,3] => [3,4,5,6,1,2,7] => ? = 19
[3,4,5,6,7,2,1] => [7,6,1,2,3,4,5] => [5,4,3,2,1,6,7] => ? = 25
[3,4,5,7,6,2,1] => [7,6,1,2,3,5,4] => [4,5,3,2,1,6,7] => ? = 25
[3,4,6,5,7,2,1] => [7,6,1,2,4,3,5] => [5,3,4,2,1,6,7] => ? = 25
[3,4,6,7,5,2,1] => [7,6,1,2,5,3,4] => [4,3,5,2,1,6,7] => ? = 26
[3,4,7,5,6,2,1] => [7,6,1,2,4,5,3] => [3,5,4,2,1,6,7] => ? = 25
[3,4,7,6,5,2,1] => [7,6,1,2,5,4,3] => [3,4,5,2,1,6,7] => ? = 26
[3,5,4,6,7,2,1] => [7,6,1,3,2,4,5] => [5,4,2,3,1,6,7] => ? = 25
[3,5,4,7,6,2,1] => [7,6,1,3,2,5,4] => [4,5,2,3,1,6,7] => ? = 25
[3,5,6,4,7,2,1] => [7,6,1,4,2,3,5] => [5,3,2,4,1,6,7] => ? = 26
Description
The number of occurrences of the pattern 123 or of the pattern 213 in a permutation.
St000436: Permutations ⟶ ℤResult quality: 58% values known / values provided: 73%distinct values known / distinct values provided: 58%
Values
[1] => ? = 0
[1,2] => 0
[2,1] => 0
[1,2,3] => 0
[1,3,2] => 0
[2,1,3] => 0
[2,3,1] => 1
[3,1,2] => 0
[3,2,1] => 1
[1,2,3,4] => 0
[1,2,4,3] => 0
[1,3,2,4] => 0
[1,3,4,2] => 1
[1,4,2,3] => 0
[1,4,3,2] => 1
[2,1,3,4] => 0
[2,1,4,3] => 0
[2,3,1,4] => 1
[2,3,4,1] => 3
[2,4,1,3] => 1
[2,4,3,1] => 3
[3,1,2,4] => 0
[3,1,4,2] => 1
[3,2,1,4] => 1
[3,2,4,1] => 3
[3,4,1,2] => 2
[3,4,2,1] => 4
[4,1,2,3] => 0
[4,1,3,2] => 1
[4,2,1,3] => 1
[4,2,3,1] => 3
[4,3,1,2] => 2
[4,3,2,1] => 4
[1,2,3,4,5] => 0
[1,2,3,5,4] => 0
[1,2,4,3,5] => 0
[1,2,4,5,3] => 1
[1,2,5,3,4] => 0
[1,2,5,4,3] => 1
[1,3,2,4,5] => 0
[1,3,2,5,4] => 0
[1,3,4,2,5] => 1
[1,3,4,5,2] => 3
[1,3,5,2,4] => 1
[1,3,5,4,2] => 3
[1,4,2,3,5] => 0
[1,4,2,5,3] => 1
[1,4,3,2,5] => 1
[1,4,3,5,2] => 3
[1,4,5,2,3] => 2
[1,4,5,3,2] => 4
[2,3,6,7,5,4,1] => ? = 19
[2,3,7,6,5,4,1] => ? = 19
[2,4,5,6,7,3,1] => ? = 21
[2,4,5,7,6,3,1] => ? = 21
[2,4,6,5,7,3,1] => ? = 21
[2,4,6,7,5,3,1] => ? = 22
[2,4,7,5,6,3,1] => ? = 21
[2,4,7,6,5,3,1] => ? = 22
[2,5,4,6,7,3,1] => ? = 21
[2,5,4,7,6,3,1] => ? = 21
[2,5,6,4,7,3,1] => ? = 22
[2,5,6,7,3,4,1] => ? = 21
[2,5,6,7,4,3,1] => ? = 24
[2,5,7,3,6,4,1] => ? = 19
[2,5,7,4,6,3,1] => ? = 22
[2,5,7,6,3,4,1] => ? = 21
[2,5,7,6,4,3,1] => ? = 24
[2,6,3,7,5,4,1] => ? = 19
[2,6,4,5,7,3,1] => ? = 21
[2,6,4,7,5,3,1] => ? = 22
[2,6,5,4,7,3,1] => ? = 22
[2,6,5,7,3,4,1] => ? = 21
[2,6,5,7,4,3,1] => ? = 24
[2,6,7,3,5,4,1] => ? = 20
[2,6,7,4,5,3,1] => ? = 23
[2,6,7,5,3,4,1] => ? = 22
[2,6,7,5,4,3,1] => ? = 25
[2,7,3,5,6,4,1] => ? = 18
[2,7,3,6,5,4,1] => ? = 19
[2,7,4,5,6,3,1] => ? = 21
[2,7,4,6,5,3,1] => ? = 22
[2,7,5,3,6,4,1] => ? = 19
[2,7,5,4,6,3,1] => ? = 22
[2,7,5,6,3,4,1] => ? = 21
[2,7,5,6,4,3,1] => ? = 24
[2,7,6,3,5,4,1] => ? = 20
[2,7,6,4,5,3,1] => ? = 23
[2,7,6,5,3,4,1] => ? = 22
[2,7,6,5,4,3,1] => ? = 25
[3,2,6,7,5,4,1] => ? = 19
[3,2,7,6,5,4,1] => ? = 19
[3,4,5,6,7,2,1] => ? = 25
[3,4,5,7,6,2,1] => ? = 25
[3,4,6,5,7,2,1] => ? = 25
[3,4,6,7,5,2,1] => ? = 26
[3,4,7,5,6,2,1] => ? = 25
[3,4,7,6,5,2,1] => ? = 26
[3,5,4,6,7,2,1] => ? = 25
[3,5,4,7,6,2,1] => ? = 25
Description
The number of occurrences of the pattern 231 or of the pattern 321 in a permutation.
Mp00066: Permutations inversePermutations
St000437: Permutations ⟶ ℤResult quality: 58% values known / values provided: 73%distinct values known / distinct values provided: 58%
Values
[1] => [1] => ? = 0
[1,2] => [1,2] => 0
[2,1] => [2,1] => 0
[1,2,3] => [1,2,3] => 0
[1,3,2] => [1,3,2] => 0
[2,1,3] => [2,1,3] => 0
[2,3,1] => [3,1,2] => 1
[3,1,2] => [2,3,1] => 0
[3,2,1] => [3,2,1] => 1
[1,2,3,4] => [1,2,3,4] => 0
[1,2,4,3] => [1,2,4,3] => 0
[1,3,2,4] => [1,3,2,4] => 0
[1,3,4,2] => [1,4,2,3] => 1
[1,4,2,3] => [1,3,4,2] => 0
[1,4,3,2] => [1,4,3,2] => 1
[2,1,3,4] => [2,1,3,4] => 0
[2,1,4,3] => [2,1,4,3] => 0
[2,3,1,4] => [3,1,2,4] => 1
[2,3,4,1] => [4,1,2,3] => 3
[2,4,1,3] => [3,1,4,2] => 1
[2,4,3,1] => [4,1,3,2] => 3
[3,1,2,4] => [2,3,1,4] => 0
[3,1,4,2] => [2,4,1,3] => 1
[3,2,1,4] => [3,2,1,4] => 1
[3,2,4,1] => [4,2,1,3] => 3
[3,4,1,2] => [3,4,1,2] => 2
[3,4,2,1] => [4,3,1,2] => 4
[4,1,2,3] => [2,3,4,1] => 0
[4,1,3,2] => [2,4,3,1] => 1
[4,2,1,3] => [3,2,4,1] => 1
[4,2,3,1] => [4,2,3,1] => 3
[4,3,1,2] => [3,4,2,1] => 2
[4,3,2,1] => [4,3,2,1] => 4
[1,2,3,4,5] => [1,2,3,4,5] => 0
[1,2,3,5,4] => [1,2,3,5,4] => 0
[1,2,4,3,5] => [1,2,4,3,5] => 0
[1,2,4,5,3] => [1,2,5,3,4] => 1
[1,2,5,3,4] => [1,2,4,5,3] => 0
[1,2,5,4,3] => [1,2,5,4,3] => 1
[1,3,2,4,5] => [1,3,2,4,5] => 0
[1,3,2,5,4] => [1,3,2,5,4] => 0
[1,3,4,2,5] => [1,4,2,3,5] => 1
[1,3,4,5,2] => [1,5,2,3,4] => 3
[1,3,5,2,4] => [1,4,2,5,3] => 1
[1,3,5,4,2] => [1,5,2,4,3] => 3
[1,4,2,3,5] => [1,3,4,2,5] => 0
[1,4,2,5,3] => [1,3,5,2,4] => 1
[1,4,3,2,5] => [1,4,3,2,5] => 1
[1,4,3,5,2] => [1,5,3,2,4] => 3
[1,4,5,2,3] => [1,4,5,2,3] => 2
[1,4,5,3,2] => [1,5,4,2,3] => 4
[2,3,6,7,5,4,1] => [7,1,2,6,5,3,4] => ? = 19
[2,3,7,6,5,4,1] => [7,1,2,6,5,4,3] => ? = 19
[2,4,5,6,7,3,1] => [7,1,6,2,3,4,5] => ? = 21
[2,4,5,7,6,3,1] => [7,1,6,2,3,5,4] => ? = 21
[2,4,6,5,7,3,1] => [7,1,6,2,4,3,5] => ? = 21
[2,4,6,7,5,3,1] => [7,1,6,2,5,3,4] => ? = 22
[2,4,7,5,6,3,1] => [7,1,6,2,4,5,3] => ? = 21
[2,4,7,6,5,3,1] => [7,1,6,2,5,4,3] => ? = 22
[2,5,4,6,7,3,1] => [7,1,6,3,2,4,5] => ? = 21
[2,5,4,7,6,3,1] => [7,1,6,3,2,5,4] => ? = 21
[2,5,6,4,7,3,1] => [7,1,6,4,2,3,5] => ? = 22
[2,5,6,7,3,4,1] => [7,1,5,6,2,3,4] => ? = 21
[2,5,6,7,4,3,1] => [7,1,6,5,2,3,4] => ? = 24
[2,5,7,3,6,4,1] => [7,1,4,6,2,5,3] => ? = 19
[2,5,7,4,6,3,1] => [7,1,6,4,2,5,3] => ? = 22
[2,5,7,6,3,4,1] => [7,1,5,6,2,4,3] => ? = 21
[2,5,7,6,4,3,1] => [7,1,6,5,2,4,3] => ? = 24
[2,6,3,7,5,4,1] => [7,1,3,6,5,2,4] => ? = 19
[2,6,4,5,7,3,1] => [7,1,6,3,4,2,5] => ? = 21
[2,6,4,7,5,3,1] => [7,1,6,3,5,2,4] => ? = 22
[2,6,5,4,7,3,1] => [7,1,6,4,3,2,5] => ? = 22
[2,6,5,7,3,4,1] => [7,1,5,6,3,2,4] => ? = 21
[2,6,5,7,4,3,1] => [7,1,6,5,3,2,4] => ? = 24
[2,6,7,3,5,4,1] => [7,1,4,6,5,2,3] => ? = 20
[2,6,7,4,5,3,1] => [7,1,6,4,5,2,3] => ? = 23
[2,6,7,5,3,4,1] => [7,1,5,6,4,2,3] => ? = 22
[2,6,7,5,4,3,1] => [7,1,6,5,4,2,3] => ? = 25
[2,7,3,5,6,4,1] => [7,1,3,6,4,5,2] => ? = 18
[2,7,3,6,5,4,1] => [7,1,3,6,5,4,2] => ? = 19
[2,7,4,5,6,3,1] => [7,1,6,3,4,5,2] => ? = 21
[2,7,4,6,5,3,1] => [7,1,6,3,5,4,2] => ? = 22
[2,7,5,3,6,4,1] => [7,1,4,6,3,5,2] => ? = 19
[2,7,5,4,6,3,1] => [7,1,6,4,3,5,2] => ? = 22
[2,7,5,6,3,4,1] => [7,1,5,6,3,4,2] => ? = 21
[2,7,5,6,4,3,1] => [7,1,6,5,3,4,2] => ? = 24
[2,7,6,3,5,4,1] => [7,1,4,6,5,3,2] => ? = 20
[2,7,6,4,5,3,1] => [7,1,6,4,5,3,2] => ? = 23
[2,7,6,5,3,4,1] => [7,1,5,6,4,3,2] => ? = 22
[2,7,6,5,4,3,1] => [7,1,6,5,4,3,2] => ? = 25
[3,2,6,7,5,4,1] => [7,2,1,6,5,3,4] => ? = 19
[3,2,7,6,5,4,1] => [7,2,1,6,5,4,3] => ? = 19
[3,4,5,6,7,2,1] => [7,6,1,2,3,4,5] => ? = 25
[3,4,5,7,6,2,1] => [7,6,1,2,3,5,4] => ? = 25
[3,4,6,5,7,2,1] => [7,6,1,2,4,3,5] => ? = 25
[3,4,6,7,5,2,1] => [7,6,1,2,5,3,4] => ? = 26
[3,4,7,5,6,2,1] => [7,6,1,2,4,5,3] => ? = 25
[3,4,7,6,5,2,1] => [7,6,1,2,5,4,3] => ? = 26
[3,5,4,6,7,2,1] => [7,6,1,3,2,4,5] => ? = 25
[3,5,4,7,6,2,1] => [7,6,1,3,2,5,4] => ? = 25
Description
The number of occurrences of the pattern 312 or of the pattern 321 in a permutation.