Identifier
-
Mp00319:
Parking functions
—to composition⟶
Integer compositions
St000761: Integer compositions ⟶ ℤ
Values
[1] => [1] => 0
[1,1] => [1,1] => 0
[1,2] => [1,2] => 1
[2,1] => [2,1] => 0
[1,1,1] => [1,1,1] => 0
[1,1,2] => [1,1,2] => 1
[1,2,1] => [1,2,1] => 1
[2,1,1] => [2,1,1] => 0
[1,1,3] => [1,1,3] => 1
[1,3,1] => [1,3,1] => 1
[3,1,1] => [3,1,1] => 0
[1,2,2] => [1,2,2] => 1
[2,1,2] => [2,1,2] => 1
[2,2,1] => [2,2,1] => 0
[1,2,3] => [1,2,3] => 2
[1,3,2] => [1,3,2] => 1
[2,1,3] => [2,1,3] => 1
[2,3,1] => [2,3,1] => 1
[3,1,2] => [3,1,2] => 1
[3,2,1] => [3,2,1] => 0
[1,1,1,1] => [1,1,1,1] => 0
[1,1,1,2] => [1,1,1,2] => 1
[1,1,2,1] => [1,1,2,1] => 1
[1,2,1,1] => [1,2,1,1] => 1
[2,1,1,1] => [2,1,1,1] => 0
[1,1,1,3] => [1,1,1,3] => 1
[1,1,3,1] => [1,1,3,1] => 1
[1,3,1,1] => [1,3,1,1] => 1
[3,1,1,1] => [3,1,1,1] => 0
[1,1,1,4] => [1,1,1,4] => 1
[1,1,4,1] => [1,1,4,1] => 1
[1,4,1,1] => [1,4,1,1] => 1
[4,1,1,1] => [4,1,1,1] => 0
[1,1,2,2] => [1,1,2,2] => 1
[1,2,1,2] => [1,2,1,2] => 2
[1,2,2,1] => [1,2,2,1] => 1
[2,1,1,2] => [2,1,1,2] => 1
[2,1,2,1] => [2,1,2,1] => 1
[2,2,1,1] => [2,2,1,1] => 0
[1,1,2,3] => [1,1,2,3] => 2
[1,1,3,2] => [1,1,3,2] => 1
[1,2,1,3] => [1,2,1,3] => 2
[1,2,3,1] => [1,2,3,1] => 2
[1,3,1,2] => [1,3,1,2] => 2
[1,3,2,1] => [1,3,2,1] => 1
[2,1,1,3] => [2,1,1,3] => 1
[2,1,3,1] => [2,1,3,1] => 1
[2,3,1,1] => [2,3,1,1] => 1
[3,1,1,2] => [3,1,1,2] => 1
[3,1,2,1] => [3,1,2,1] => 1
[3,2,1,1] => [3,2,1,1] => 0
[1,1,2,4] => [1,1,2,4] => 2
[1,1,4,2] => [1,1,4,2] => 1
[1,2,1,4] => [1,2,1,4] => 2
[1,2,4,1] => [1,2,4,1] => 2
[1,4,1,2] => [1,4,1,2] => 2
[1,4,2,1] => [1,4,2,1] => 1
[2,1,1,4] => [2,1,1,4] => 1
[2,1,4,1] => [2,1,4,1] => 1
[2,4,1,1] => [2,4,1,1] => 1
[4,1,1,2] => [4,1,1,2] => 1
[4,1,2,1] => [4,1,2,1] => 1
[4,2,1,1] => [4,2,1,1] => 0
[1,1,3,3] => [1,1,3,3] => 1
[1,3,1,3] => [1,3,1,3] => 2
[1,3,3,1] => [1,3,3,1] => 1
[3,1,1,3] => [3,1,1,3] => 1
[3,1,3,1] => [3,1,3,1] => 1
[3,3,1,1] => [3,3,1,1] => 0
[1,1,3,4] => [1,1,3,4] => 2
[1,1,4,3] => [1,1,4,3] => 1
[1,3,1,4] => [1,3,1,4] => 2
[1,3,4,1] => [1,3,4,1] => 2
[1,4,1,3] => [1,4,1,3] => 2
[1,4,3,1] => [1,4,3,1] => 1
[3,1,1,4] => [3,1,1,4] => 1
[3,1,4,1] => [3,1,4,1] => 1
[3,4,1,1] => [3,4,1,1] => 1
[4,1,1,3] => [4,1,1,3] => 1
[4,1,3,1] => [4,1,3,1] => 1
[4,3,1,1] => [4,3,1,1] => 0
[1,2,2,2] => [1,2,2,2] => 1
[2,1,2,2] => [2,1,2,2] => 1
[2,2,1,2] => [2,2,1,2] => 1
[2,2,2,1] => [2,2,2,1] => 0
[1,2,2,3] => [1,2,2,3] => 2
[1,2,3,2] => [1,2,3,2] => 2
[1,3,2,2] => [1,3,2,2] => 1
[2,1,2,3] => [2,1,2,3] => 2
[2,1,3,2] => [2,1,3,2] => 1
[2,2,1,3] => [2,2,1,3] => 1
[2,2,3,1] => [2,2,3,1] => 1
[2,3,1,2] => [2,3,1,2] => 2
[2,3,2,1] => [2,3,2,1] => 1
[3,1,2,2] => [3,1,2,2] => 1
[3,2,1,2] => [3,2,1,2] => 1
[3,2,2,1] => [3,2,2,1] => 0
[1,2,2,4] => [1,2,2,4] => 2
[1,2,4,2] => [1,2,4,2] => 2
[1,4,2,2] => [1,4,2,2] => 1
[2,1,2,4] => [2,1,2,4] => 2
>>> Load all 331 entries. <<<
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Description
The number of ascents in an integer composition.
A composition has an ascent, or rise, at position $i$ if $a_i < a_{i+1}$.
A composition has an ascent, or rise, at position $i$ if $a_i < a_{i+1}$.
Map
to composition
Description
Return the parking function interpreted as an integer composition.
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