Identifier
-
Mp00142:
Dyck paths
—promotion⟶
Dyck paths
Mp00024: Dyck paths —to 321-avoiding permutation⟶ Permutations
Mp00064: Permutations —reverse⟶ Permutations
St001687: Permutations ⟶ ℤ
Values
[1,0] => [1,0] => [1] => [1] => 0
[1,0,1,0] => [1,1,0,0] => [1,2] => [2,1] => 0
[1,1,0,0] => [1,0,1,0] => [2,1] => [1,2] => 0
[1,0,1,0,1,0] => [1,1,0,1,0,0] => [1,3,2] => [2,3,1] => 0
[1,0,1,1,0,0] => [1,1,0,0,1,0] => [3,1,2] => [2,1,3] => 1
[1,1,0,0,1,0] => [1,1,1,0,0,0] => [1,2,3] => [3,2,1] => 0
[1,1,0,1,0,0] => [1,0,1,0,1,0] => [2,1,3] => [3,1,2] => 0
[1,1,1,0,0,0] => [1,0,1,1,0,0] => [2,3,1] => [1,3,2] => 0
[1,0,1,0,1,0,1,0] => [1,1,0,1,0,1,0,0] => [1,3,2,4] => [4,2,3,1] => 0
[1,0,1,0,1,1,0,0] => [1,1,0,1,0,0,1,0] => [3,1,2,4] => [4,2,1,3] => 1
[1,0,1,1,0,0,1,0] => [1,1,0,1,1,0,0,0] => [1,3,4,2] => [2,4,3,1] => 0
[1,0,1,1,0,1,0,0] => [1,1,0,0,1,0,1,0] => [3,1,4,2] => [2,4,1,3] => 1
[1,0,1,1,1,0,0,0] => [1,1,0,0,1,1,0,0] => [3,4,1,2] => [2,1,4,3] => 1
[1,1,0,0,1,0,1,0] => [1,1,1,0,0,1,0,0] => [1,4,2,3] => [3,2,4,1] => 1
[1,1,0,0,1,1,0,0] => [1,1,1,0,0,0,1,0] => [4,1,2,3] => [3,2,1,4] => 2
[1,1,0,1,0,0,1,0] => [1,1,1,0,1,0,0,0] => [1,2,4,3] => [3,4,2,1] => 0
[1,1,0,1,0,1,0,0] => [1,0,1,0,1,0,1,0] => [2,1,4,3] => [3,4,1,2] => 0
[1,1,0,1,1,0,0,0] => [1,0,1,0,1,1,0,0] => [2,4,1,3] => [3,1,4,2] => 1
[1,1,1,0,0,0,1,0] => [1,1,1,1,0,0,0,0] => [1,2,3,4] => [4,3,2,1] => 0
[1,1,1,0,0,1,0,0] => [1,0,1,1,0,0,1,0] => [2,1,3,4] => [4,3,1,2] => 0
[1,1,1,0,1,0,0,0] => [1,0,1,1,0,1,0,0] => [2,3,1,4] => [4,1,3,2] => 0
[1,1,1,1,0,0,0,0] => [1,0,1,1,1,0,0,0] => [2,3,4,1] => [1,4,3,2] => 0
[1,0,1,0,1,0,1,0,1,0] => [1,1,0,1,0,1,0,1,0,0] => [1,3,2,5,4] => [4,5,2,3,1] => 0
[1,0,1,0,1,0,1,1,0,0] => [1,1,0,1,0,1,0,0,1,0] => [3,1,2,5,4] => [4,5,2,1,3] => 1
[1,0,1,0,1,1,0,0,1,0] => [1,1,0,1,0,1,1,0,0,0] => [1,3,5,2,4] => [4,2,5,3,1] => 1
[1,0,1,0,1,1,0,1,0,0] => [1,1,0,1,0,0,1,0,1,0] => [3,1,5,2,4] => [4,2,5,1,3] => 2
[1,0,1,0,1,1,1,0,0,0] => [1,1,0,1,0,0,1,1,0,0] => [3,5,1,2,4] => [4,2,1,5,3] => 2
[1,0,1,1,0,0,1,0,1,0] => [1,1,0,1,1,0,0,1,0,0] => [1,3,2,4,5] => [5,4,2,3,1] => 0
[1,0,1,1,0,0,1,1,0,0] => [1,1,0,1,1,0,0,0,1,0] => [3,1,2,4,5] => [5,4,2,1,3] => 1
[1,0,1,1,0,1,0,0,1,0] => [1,1,0,1,1,0,1,0,0,0] => [1,3,4,2,5] => [5,2,4,3,1] => 0
[1,0,1,1,0,1,0,1,0,0] => [1,1,0,0,1,0,1,0,1,0] => [3,1,4,2,5] => [5,2,4,1,3] => 1
[1,0,1,1,0,1,1,0,0,0] => [1,1,0,0,1,0,1,1,0,0] => [3,4,1,2,5] => [5,2,1,4,3] => 1
[1,0,1,1,1,0,0,0,1,0] => [1,1,0,1,1,1,0,0,0,0] => [1,3,4,5,2] => [2,5,4,3,1] => 0
[1,0,1,1,1,0,0,1,0,0] => [1,1,0,0,1,1,0,0,1,0] => [3,1,4,5,2] => [2,5,4,1,3] => 1
[1,0,1,1,1,0,1,0,0,0] => [1,1,0,0,1,1,0,1,0,0] => [3,4,1,5,2] => [2,5,1,4,3] => 1
[1,0,1,1,1,1,0,0,0,0] => [1,1,0,0,1,1,1,0,0,0] => [3,4,5,1,2] => [2,1,5,4,3] => 1
[1,1,0,0,1,0,1,0,1,0] => [1,1,1,0,0,1,0,1,0,0] => [1,4,2,5,3] => [3,5,2,4,1] => 1
[1,1,0,0,1,0,1,1,0,0] => [1,1,1,0,0,1,0,0,1,0] => [4,1,2,5,3] => [3,5,2,1,4] => 2
[1,1,0,0,1,1,0,0,1,0] => [1,1,1,0,0,1,1,0,0,0] => [1,4,5,2,3] => [3,2,5,4,1] => 1
[1,1,0,0,1,1,0,1,0,0] => [1,1,1,0,0,0,1,0,1,0] => [4,1,5,2,3] => [3,2,5,1,4] => 2
[1,1,0,0,1,1,1,0,0,0] => [1,1,1,0,0,0,1,1,0,0] => [4,5,1,2,3] => [3,2,1,5,4] => 2
[1,1,0,1,0,0,1,0,1,0] => [1,1,1,0,1,0,0,1,0,0] => [1,4,2,3,5] => [5,3,2,4,1] => 1
[1,1,0,1,0,0,1,1,0,0] => [1,1,1,0,1,0,0,0,1,0] => [4,1,2,3,5] => [5,3,2,1,4] => 2
[1,1,0,1,0,1,0,0,1,0] => [1,1,1,0,1,0,1,0,0,0] => [1,2,4,3,5] => [5,3,4,2,1] => 0
[1,1,0,1,0,1,0,1,0,0] => [1,0,1,0,1,0,1,0,1,0] => [2,1,4,3,5] => [5,3,4,1,2] => 0
[1,1,0,1,0,1,1,0,0,0] => [1,0,1,0,1,0,1,1,0,0] => [2,4,1,3,5] => [5,3,1,4,2] => 1
[1,1,0,1,1,0,0,0,1,0] => [1,1,1,0,1,1,0,0,0,0] => [1,2,4,5,3] => [3,5,4,2,1] => 0
[1,1,0,1,1,0,0,1,0,0] => [1,0,1,0,1,1,0,0,1,0] => [2,1,4,5,3] => [3,5,4,1,2] => 0
[1,1,0,1,1,0,1,0,0,0] => [1,0,1,0,1,1,0,1,0,0] => [2,4,1,5,3] => [3,5,1,4,2] => 1
[1,1,0,1,1,1,0,0,0,0] => [1,0,1,0,1,1,1,0,0,0] => [2,4,5,1,3] => [3,1,5,4,2] => 1
[1,1,1,0,0,0,1,0,1,0] => [1,1,1,1,0,0,0,1,0,0] => [1,5,2,3,4] => [4,3,2,5,1] => 2
[1,1,1,0,0,0,1,1,0,0] => [1,1,1,1,0,0,0,0,1,0] => [5,1,2,3,4] => [4,3,2,1,5] => 3
[1,1,1,0,0,1,0,0,1,0] => [1,1,1,1,0,0,1,0,0,0] => [1,2,5,3,4] => [4,3,5,2,1] => 1
[1,1,1,0,0,1,0,1,0,0] => [1,0,1,1,0,0,1,0,1,0] => [2,1,5,3,4] => [4,3,5,1,2] => 1
[1,1,1,0,0,1,1,0,0,0] => [1,0,1,1,0,0,1,1,0,0] => [2,5,1,3,4] => [4,3,1,5,2] => 2
[1,1,1,0,1,0,0,0,1,0] => [1,1,1,1,0,1,0,0,0,0] => [1,2,3,5,4] => [4,5,3,2,1] => 0
[1,1,1,0,1,0,0,1,0,0] => [1,0,1,1,0,1,0,0,1,0] => [2,1,3,5,4] => [4,5,3,1,2] => 0
[1,1,1,0,1,0,1,0,0,0] => [1,0,1,1,0,1,0,1,0,0] => [2,3,1,5,4] => [4,5,1,3,2] => 0
[1,1,1,0,1,1,0,0,0,0] => [1,0,1,1,0,1,1,0,0,0] => [2,3,5,1,4] => [4,1,5,3,2] => 1
[1,1,1,1,0,0,0,0,1,0] => [1,1,1,1,1,0,0,0,0,0] => [1,2,3,4,5] => [5,4,3,2,1] => 0
[1,1,1,1,0,0,0,1,0,0] => [1,0,1,1,1,0,0,0,1,0] => [2,1,3,4,5] => [5,4,3,1,2] => 0
[1,1,1,1,0,0,1,0,0,0] => [1,0,1,1,1,0,0,1,0,0] => [2,3,1,4,5] => [5,4,1,3,2] => 0
[1,1,1,1,0,1,0,0,0,0] => [1,0,1,1,1,0,1,0,0,0] => [2,3,4,1,5] => [5,1,4,3,2] => 0
[1,1,1,1,1,0,0,0,0,0] => [1,0,1,1,1,1,0,0,0,0] => [2,3,4,5,1] => [1,5,4,3,2] => 0
[1,0,1,0,1,0,1,0,1,0,1,0] => [1,1,0,1,0,1,0,1,0,1,0,0] => [1,3,2,5,4,6] => [6,4,5,2,3,1] => 0
[1,0,1,0,1,0,1,0,1,1,0,0] => [1,1,0,1,0,1,0,1,0,0,1,0] => [3,1,2,5,4,6] => [6,4,5,2,1,3] => 1
[1,0,1,0,1,0,1,1,0,0,1,0] => [1,1,0,1,0,1,0,1,1,0,0,0] => [1,3,5,2,4,6] => [6,4,2,5,3,1] => 1
[1,0,1,0,1,0,1,1,0,1,0,0] => [1,1,0,1,0,1,0,0,1,0,1,0] => [3,1,5,2,4,6] => [6,4,2,5,1,3] => 2
[1,0,1,0,1,0,1,1,1,0,0,0] => [1,1,0,1,0,1,0,0,1,1,0,0] => [3,5,1,2,4,6] => [6,4,2,1,5,3] => 2
[1,0,1,0,1,1,0,0,1,0,1,0] => [1,1,0,1,0,1,1,0,0,1,0,0] => [1,3,2,5,6,4] => [4,6,5,2,3,1] => 0
[1,0,1,0,1,1,0,0,1,1,0,0] => [1,1,0,1,0,1,1,0,0,0,1,0] => [3,1,2,5,6,4] => [4,6,5,2,1,3] => 1
[1,0,1,0,1,1,0,1,0,0,1,0] => [1,1,0,1,0,1,1,0,1,0,0,0] => [1,3,5,2,6,4] => [4,6,2,5,3,1] => 1
[1,0,1,0,1,1,0,1,0,1,0,0] => [1,1,0,1,0,0,1,0,1,0,1,0] => [3,1,5,2,6,4] => [4,6,2,5,1,3] => 2
[1,0,1,0,1,1,0,1,1,0,0,0] => [1,1,0,1,0,0,1,0,1,1,0,0] => [3,5,1,2,6,4] => [4,6,2,1,5,3] => 2
[1,0,1,0,1,1,1,0,0,0,1,0] => [1,1,0,1,0,1,1,1,0,0,0,0] => [1,3,5,6,2,4] => [4,2,6,5,3,1] => 1
[1,0,1,0,1,1,1,0,0,1,0,0] => [1,1,0,1,0,0,1,1,0,0,1,0] => [3,1,5,6,2,4] => [4,2,6,5,1,3] => 2
[1,0,1,0,1,1,1,0,1,0,0,0] => [1,1,0,1,0,0,1,1,0,1,0,0] => [3,5,1,6,2,4] => [4,2,6,1,5,3] => 2
[1,0,1,0,1,1,1,1,0,0,0,0] => [1,1,0,1,0,0,1,1,1,0,0,0] => [3,5,6,1,2,4] => [4,2,1,6,5,3] => 2
[1,0,1,1,0,0,1,0,1,0,1,0] => [1,1,0,1,1,0,0,1,0,1,0,0] => [1,3,2,6,4,5] => [5,4,6,2,3,1] => 1
[1,0,1,1,0,0,1,0,1,1,0,0] => [1,1,0,1,1,0,0,1,0,0,1,0] => [3,1,2,6,4,5] => [5,4,6,2,1,3] => 2
[1,0,1,1,0,0,1,1,0,0,1,0] => [1,1,0,1,1,0,0,1,1,0,0,0] => [1,3,6,2,4,5] => [5,4,2,6,3,1] => 2
[1,0,1,1,0,0,1,1,0,1,0,0] => [1,1,0,1,1,0,0,0,1,0,1,0] => [3,1,6,2,4,5] => [5,4,2,6,1,3] => 3
[1,0,1,1,0,0,1,1,1,0,0,0] => [1,1,0,1,1,0,0,0,1,1,0,0] => [3,6,1,2,4,5] => [5,4,2,1,6,3] => 3
[1,0,1,1,0,1,0,0,1,0,1,0] => [1,1,0,1,1,0,1,0,0,1,0,0] => [1,3,2,4,6,5] => [5,6,4,2,3,1] => 0
[1,0,1,1,0,1,0,0,1,1,0,0] => [1,1,0,1,1,0,1,0,0,0,1,0] => [3,1,2,4,6,5] => [5,6,4,2,1,3] => 1
[1,0,1,1,0,1,0,1,0,0,1,0] => [1,1,0,1,1,0,1,0,1,0,0,0] => [1,3,4,2,6,5] => [5,6,2,4,3,1] => 0
[1,0,1,1,0,1,0,1,0,1,0,0] => [1,1,0,0,1,0,1,0,1,0,1,0] => [3,1,4,2,6,5] => [5,6,2,4,1,3] => 1
[1,0,1,1,0,1,0,1,1,0,0,0] => [1,1,0,0,1,0,1,0,1,1,0,0] => [3,4,1,2,6,5] => [5,6,2,1,4,3] => 1
[1,0,1,1,0,1,1,0,0,0,1,0] => [1,1,0,1,1,0,1,1,0,0,0,0] => [1,3,4,6,2,5] => [5,2,6,4,3,1] => 1
[1,0,1,1,0,1,1,0,0,1,0,0] => [1,1,0,0,1,0,1,1,0,0,1,0] => [3,1,4,6,2,5] => [5,2,6,4,1,3] => 2
[1,0,1,1,0,1,1,0,1,0,0,0] => [1,1,0,0,1,0,1,1,0,1,0,0] => [3,4,1,6,2,5] => [5,2,6,1,4,3] => 2
[1,0,1,1,0,1,1,1,0,0,0,0] => [1,1,0,0,1,0,1,1,1,0,0,0] => [3,4,6,1,2,5] => [5,2,1,6,4,3] => 2
[1,0,1,1,1,0,0,0,1,0,1,0] => [1,1,0,1,1,1,0,0,0,1,0,0] => [1,3,2,4,5,6] => [6,5,4,2,3,1] => 0
[1,0,1,1,1,0,0,0,1,1,0,0] => [1,1,0,1,1,1,0,0,0,0,1,0] => [3,1,2,4,5,6] => [6,5,4,2,1,3] => 1
[1,0,1,1,1,0,0,1,0,0,1,0] => [1,1,0,1,1,1,0,0,1,0,0,0] => [1,3,4,2,5,6] => [6,5,2,4,3,1] => 0
[1,0,1,1,1,0,0,1,0,1,0,0] => [1,1,0,0,1,1,0,0,1,0,1,0] => [3,1,4,2,5,6] => [6,5,2,4,1,3] => 1
[1,0,1,1,1,0,0,1,1,0,0,0] => [1,1,0,0,1,1,0,0,1,1,0,0] => [3,4,1,2,5,6] => [6,5,2,1,4,3] => 1
[1,0,1,1,1,0,1,0,0,0,1,0] => [1,1,0,1,1,1,0,1,0,0,0,0] => [1,3,4,5,2,6] => [6,2,5,4,3,1] => 0
[1,0,1,1,1,0,1,0,0,1,0,0] => [1,1,0,0,1,1,0,1,0,0,1,0] => [3,1,4,5,2,6] => [6,2,5,4,1,3] => 1
[1,0,1,1,1,0,1,0,1,0,0,0] => [1,1,0,0,1,1,0,1,0,1,0,0] => [3,4,1,5,2,6] => [6,2,5,1,4,3] => 1
[1,0,1,1,1,0,1,1,0,0,0,0] => [1,1,0,0,1,1,0,1,1,0,0,0] => [3,4,5,1,2,6] => [6,2,1,5,4,3] => 1
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Description
The number of distinct positions of the pattern letter 2 in occurrences of 213 in a permutation.
Map
promotion
Description
The promotion of the two-row standard Young tableau of a Dyck path.
Dyck paths of semilength $n$ are in bijection with standard Young tableaux of shape $(n^2)$, see Mp00033to two-row standard tableau.
This map is the bijection on such standard Young tableaux given by Schützenberger's promotion. For definitions and details, see [1] and the references therein.
Dyck paths of semilength $n$ are in bijection with standard Young tableaux of shape $(n^2)$, see Mp00033to two-row standard tableau.
This map is the bijection on such standard Young tableaux given by Schützenberger's promotion. For definitions and details, see [1] and the references therein.
Map
reverse
Description
Sends a permutation to its reverse.
The reverse of a permutation $\sigma$ of length $n$ is given by $\tau$ with $\tau(i) = \sigma(n+1-i)$.
The reverse of a permutation $\sigma$ of length $n$ is given by $\tau$ with $\tau(i) = \sigma(n+1-i)$.
Map
to 321-avoiding permutation
Description
Sends a Dyck path to a 321-avoiding permutation.
This bijection defined in [3, pp. 60] and in [2, Section 3.1].
It is shown in [1] that it sends the number of centered tunnels to the number of fixed points, the number of right tunnels to the number of exceedences, and the semilength plus the height of the middle point to 2 times the length of the longest increasing subsequence.
This bijection defined in [3, pp. 60] and in [2, Section 3.1].
It is shown in [1] that it sends the number of centered tunnels to the number of fixed points, the number of right tunnels to the number of exceedences, and the semilength plus the height of the middle point to 2 times the length of the longest increasing subsequence.
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