Identifier
-
Mp00025:
Dyck paths
—to 132-avoiding permutation⟶
Permutations
Mp00175: Permutations —inverse Foata bijection⟶ Permutations
Mp00326: Permutations —weak order rowmotion⟶ Permutations
St001083: Permutations ⟶ ℤ
Values
[1,0] => [1] => [1] => [1] => 0
[1,0,1,0] => [2,1] => [2,1] => [1,2] => 0
[1,1,0,0] => [1,2] => [1,2] => [2,1] => 0
[1,0,1,0,1,0] => [3,2,1] => [3,2,1] => [1,2,3] => 0
[1,0,1,1,0,0] => [2,3,1] => [2,3,1] => [2,1,3] => 0
[1,1,0,0,1,0] => [3,1,2] => [1,3,2] => [2,3,1] => 0
[1,1,0,1,0,0] => [2,1,3] => [2,1,3] => [3,1,2] => 0
[1,1,1,0,0,0] => [1,2,3] => [1,2,3] => [3,2,1] => 0
[1,0,1,0,1,0,1,0] => [4,3,2,1] => [4,3,2,1] => [1,2,3,4] => 0
[1,0,1,0,1,1,0,0] => [3,4,2,1] => [3,4,2,1] => [3,1,2,4] => 0
[1,0,1,1,0,0,1,0] => [4,2,3,1] => [2,4,3,1] => [2,1,3,4] => 0
[1,0,1,1,0,1,0,0] => [3,2,4,1] => [3,2,4,1] => [2,3,1,4] => 0
[1,0,1,1,1,0,0,0] => [2,3,4,1] => [2,3,4,1] => [3,2,1,4] => 0
[1,1,0,0,1,0,1,0] => [4,3,1,2] => [1,4,3,2] => [2,3,4,1] => 0
[1,1,0,0,1,1,0,0] => [3,4,1,2] => [3,1,4,2] => [1,3,2,4] => 1
[1,1,0,1,0,0,1,0] => [4,2,1,3] => [2,1,4,3] => [3,4,1,2] => 0
[1,1,0,1,0,1,0,0] => [3,2,1,4] => [3,2,1,4] => [4,1,2,3] => 0
[1,1,0,1,1,0,0,0] => [2,3,1,4] => [2,3,1,4] => [4,2,1,3] => 0
[1,1,1,0,0,0,1,0] => [4,1,2,3] => [1,2,4,3] => [3,4,2,1] => 0
[1,1,1,0,0,1,0,0] => [3,1,2,4] => [1,3,2,4] => [4,2,3,1] => 0
[1,1,1,0,1,0,0,0] => [2,1,3,4] => [2,1,3,4] => [4,3,1,2] => 0
[1,1,1,1,0,0,0,0] => [1,2,3,4] => [1,2,3,4] => [4,3,2,1] => 0
[1,0,1,0,1,0,1,0,1,0] => [5,4,3,2,1] => [5,4,3,2,1] => [1,2,3,4,5] => 0
[1,0,1,0,1,0,1,1,0,0] => [4,5,3,2,1] => [4,5,3,2,1] => [4,1,2,3,5] => 0
[1,0,1,0,1,1,0,0,1,0] => [5,3,4,2,1] => [3,5,4,2,1] => [3,1,2,4,5] => 0
[1,0,1,0,1,1,0,1,0,0] => [4,3,5,2,1] => [4,3,5,2,1] => [3,4,1,2,5] => 0
[1,0,1,0,1,1,1,0,0,0] => [3,4,5,2,1] => [3,4,5,2,1] => [4,3,1,2,5] => 0
[1,0,1,1,0,0,1,0,1,0] => [5,4,2,3,1] => [2,5,4,3,1] => [2,1,3,4,5] => 0
[1,0,1,1,0,0,1,1,0,0] => [4,5,2,3,1] => [4,2,5,3,1] => [2,4,1,3,5] => 1
[1,0,1,1,0,1,0,0,1,0] => [5,3,2,4,1] => [3,2,5,4,1] => [2,3,1,4,5] => 0
[1,0,1,1,0,1,0,1,0,0] => [4,3,2,5,1] => [4,3,2,5,1] => [2,3,4,1,5] => 0
[1,0,1,1,0,1,1,0,0,0] => [3,4,2,5,1] => [3,4,2,5,1] => [3,2,4,1,5] => 0
[1,0,1,1,1,0,0,0,1,0] => [5,2,3,4,1] => [2,3,5,4,1] => [3,2,1,4,5] => 0
[1,0,1,1,1,0,0,1,0,0] => [4,2,3,5,1] => [2,4,3,5,1] => [3,4,2,1,5] => 0
[1,0,1,1,1,0,1,0,0,0] => [3,2,4,5,1] => [3,2,4,5,1] => [4,2,3,1,5] => 0
[1,0,1,1,1,1,0,0,0,0] => [2,3,4,5,1] => [2,3,4,5,1] => [4,3,2,1,5] => 0
[1,1,0,0,1,0,1,0,1,0] => [5,4,3,1,2] => [1,5,4,3,2] => [2,3,4,5,1] => 0
[1,1,0,0,1,0,1,1,0,0] => [4,5,3,1,2] => [4,1,5,3,2] => [1,4,2,3,5] => 1
[1,1,0,0,1,1,0,0,1,0] => [5,3,4,1,2] => [3,1,5,4,2] => [1,3,2,4,5] => 1
[1,1,0,0,1,1,0,1,0,0] => [4,3,5,1,2] => [4,3,1,5,2] => [1,3,4,2,5] => 1
[1,1,0,0,1,1,1,0,0,0] => [3,4,5,1,2] => [3,4,1,5,2] => [3,1,4,2,5] => 1
[1,1,0,1,0,0,1,0,1,0] => [5,4,2,1,3] => [2,1,5,4,3] => [3,4,5,1,2] => 0
[1,1,0,1,0,0,1,1,0,0] => [4,5,2,1,3] => [4,2,1,5,3] => [1,2,4,3,5] => 1
[1,1,0,1,0,1,0,0,1,0] => [5,3,2,1,4] => [3,2,1,5,4] => [4,5,1,2,3] => 0
[1,1,0,1,0,1,0,1,0,0] => [4,3,2,1,5] => [4,3,2,1,5] => [5,1,2,3,4] => 0
[1,1,0,1,0,1,1,0,0,0] => [3,4,2,1,5] => [3,4,2,1,5] => [5,3,1,2,4] => 0
[1,1,0,1,1,0,0,0,1,0] => [5,2,3,1,4] => [2,3,1,5,4] => [4,5,2,1,3] => 0
[1,1,0,1,1,0,0,1,0,0] => [4,2,3,1,5] => [2,4,3,1,5] => [5,2,1,3,4] => 0
[1,1,0,1,1,0,1,0,0,0] => [3,2,4,1,5] => [3,2,4,1,5] => [5,2,3,1,4] => 0
[1,1,0,1,1,1,0,0,0,0] => [2,3,4,1,5] => [2,3,4,1,5] => [5,3,2,1,4] => 0
[1,1,1,0,0,0,1,0,1,0] => [5,4,1,2,3] => [1,2,5,4,3] => [3,4,5,2,1] => 0
[1,1,1,0,0,0,1,1,0,0] => [4,5,1,2,3] => [1,4,2,5,3] => [2,4,3,5,1] => 1
[1,1,1,0,0,1,0,0,1,0] => [5,3,1,2,4] => [1,3,2,5,4] => [4,5,2,3,1] => 0
[1,1,1,0,0,1,0,1,0,0] => [4,3,1,2,5] => [1,4,3,2,5] => [5,2,3,4,1] => 0
[1,1,1,0,0,1,1,0,0,0] => [3,4,1,2,5] => [3,1,4,2,5] => [5,1,3,2,4] => 1
[1,1,1,0,1,0,0,0,1,0] => [5,2,1,3,4] => [2,1,3,5,4] => [4,5,3,1,2] => 0
[1,1,1,0,1,0,0,1,0,0] => [4,2,1,3,5] => [2,1,4,3,5] => [5,3,4,1,2] => 0
[1,1,1,0,1,0,1,0,0,0] => [3,2,1,4,5] => [3,2,1,4,5] => [5,4,1,2,3] => 0
[1,1,1,0,1,1,0,0,0,0] => [2,3,1,4,5] => [2,3,1,4,5] => [5,4,2,1,3] => 0
[1,1,1,1,0,0,0,0,1,0] => [5,1,2,3,4] => [1,2,3,5,4] => [4,5,3,2,1] => 0
[1,1,1,1,0,0,0,1,0,0] => [4,1,2,3,5] => [1,2,4,3,5] => [5,3,4,2,1] => 0
[1,1,1,1,0,0,1,0,0,0] => [3,1,2,4,5] => [1,3,2,4,5] => [5,4,2,3,1] => 0
[1,1,1,1,0,1,0,0,0,0] => [2,1,3,4,5] => [2,1,3,4,5] => [5,4,3,1,2] => 0
[1,1,1,1,1,0,0,0,0,0] => [1,2,3,4,5] => [1,2,3,4,5] => [5,4,3,2,1] => 0
[1,0,1,0,1,0,1,0,1,0,1,0] => [6,5,4,3,2,1] => [6,5,4,3,2,1] => [1,2,3,4,5,6] => 0
[1,0,1,0,1,0,1,0,1,1,0,0] => [5,6,4,3,2,1] => [5,6,4,3,2,1] => [5,1,2,3,4,6] => 0
[1,0,1,0,1,0,1,1,0,0,1,0] => [6,4,5,3,2,1] => [4,6,5,3,2,1] => [4,1,2,3,5,6] => 0
[1,0,1,0,1,0,1,1,0,1,0,0] => [5,4,6,3,2,1] => [5,4,6,3,2,1] => [4,5,1,2,3,6] => 0
[1,0,1,0,1,0,1,1,1,0,0,0] => [4,5,6,3,2,1] => [4,5,6,3,2,1] => [5,4,1,2,3,6] => 0
[1,0,1,0,1,1,0,0,1,0,1,0] => [6,5,3,4,2,1] => [3,6,5,4,2,1] => [3,1,2,4,5,6] => 0
[1,0,1,0,1,1,0,0,1,1,0,0] => [5,6,3,4,2,1] => [5,3,6,4,2,1] => [3,5,1,2,4,6] => 1
[1,0,1,0,1,1,0,1,0,0,1,0] => [6,4,3,5,2,1] => [4,3,6,5,2,1] => [3,4,1,2,5,6] => 0
[1,0,1,0,1,1,0,1,0,1,0,0] => [5,4,3,6,2,1] => [5,4,3,6,2,1] => [3,4,5,1,2,6] => 0
[1,0,1,0,1,1,0,1,1,0,0,0] => [4,5,3,6,2,1] => [4,5,3,6,2,1] => [4,3,5,1,2,6] => 0
[1,0,1,0,1,1,1,0,0,0,1,0] => [6,3,4,5,2,1] => [3,4,6,5,2,1] => [4,3,1,2,5,6] => 0
[1,0,1,0,1,1,1,0,0,1,0,0] => [5,3,4,6,2,1] => [3,5,4,6,2,1] => [4,5,3,1,2,6] => 0
[1,0,1,0,1,1,1,0,1,0,0,0] => [4,3,5,6,2,1] => [4,3,5,6,2,1] => [5,3,4,1,2,6] => 0
[1,0,1,0,1,1,1,1,0,0,0,0] => [3,4,5,6,2,1] => [3,4,5,6,2,1] => [5,4,3,1,2,6] => 0
[1,0,1,1,0,0,1,0,1,0,1,0] => [6,5,4,2,3,1] => [2,6,5,4,3,1] => [2,1,3,4,5,6] => 0
[1,0,1,1,0,0,1,0,1,1,0,0] => [5,6,4,2,3,1] => [5,2,6,4,3,1] => [2,5,1,3,4,6] => 1
[1,0,1,1,0,0,1,1,0,0,1,0] => [6,4,5,2,3,1] => [4,2,6,5,3,1] => [2,4,1,3,5,6] => 1
[1,0,1,1,0,0,1,1,0,1,0,0] => [5,4,6,2,3,1] => [5,4,2,6,3,1] => [2,4,5,1,3,6] => 1
[1,0,1,1,0,0,1,1,1,0,0,0] => [4,5,6,2,3,1] => [4,5,2,6,3,1] => [4,2,5,1,3,6] => 1
[1,0,1,1,0,1,0,0,1,0,1,0] => [6,5,3,2,4,1] => [3,2,6,5,4,1] => [2,3,1,4,5,6] => 0
[1,0,1,1,0,1,0,0,1,1,0,0] => [5,6,3,2,4,1] => [5,3,2,6,4,1] => [2,3,5,1,4,6] => 1
[1,0,1,1,0,1,0,1,0,0,1,0] => [6,4,3,2,5,1] => [4,3,2,6,5,1] => [2,3,4,1,5,6] => 0
[1,0,1,1,0,1,0,1,0,1,0,0] => [5,4,3,2,6,1] => [5,4,3,2,6,1] => [2,3,4,5,1,6] => 0
[1,0,1,1,0,1,0,1,1,0,0,0] => [4,5,3,2,6,1] => [4,5,3,2,6,1] => [4,2,3,5,1,6] => 0
[1,0,1,1,0,1,1,0,0,0,1,0] => [6,3,4,2,5,1] => [3,4,2,6,5,1] => [3,2,4,1,5,6] => 0
[1,0,1,1,0,1,1,0,0,1,0,0] => [5,3,4,2,6,1] => [3,5,4,2,6,1] => [3,2,4,5,1,6] => 0
[1,0,1,1,0,1,1,0,1,0,0,0] => [4,3,5,2,6,1] => [4,3,5,2,6,1] => [3,4,2,5,1,6] => 0
[1,0,1,1,0,1,1,1,0,0,0,0] => [3,4,5,2,6,1] => [3,4,5,2,6,1] => [4,3,2,5,1,6] => 0
[1,0,1,1,1,0,0,0,1,0,1,0] => [6,5,2,3,4,1] => [2,3,6,5,4,1] => [3,2,1,4,5,6] => 0
[1,0,1,1,1,0,0,0,1,1,0,0] => [5,6,2,3,4,1] => [2,5,3,6,4,1] => [3,5,2,1,4,6] => 1
[1,0,1,1,1,0,0,1,0,0,1,0] => [6,4,2,3,5,1] => [2,4,3,6,5,1] => [3,4,2,1,5,6] => 0
[1,0,1,1,1,0,0,1,0,1,0,0] => [5,4,2,3,6,1] => [2,5,4,3,6,1] => [3,4,5,2,1,6] => 0
[1,0,1,1,1,0,0,1,1,0,0,0] => [4,5,2,3,6,1] => [4,2,5,3,6,1] => [2,4,3,5,1,6] => 1
[1,0,1,1,1,0,1,0,0,0,1,0] => [6,3,2,4,5,1] => [3,2,4,6,5,1] => [4,2,3,1,5,6] => 0
[1,0,1,1,1,0,1,0,0,1,0,0] => [5,3,2,4,6,1] => [3,2,5,4,6,1] => [4,5,2,3,1,6] => 0
[1,0,1,1,1,0,1,0,1,0,0,0] => [4,3,2,5,6,1] => [4,3,2,5,6,1] => [5,2,3,4,1,6] => 0
[1,0,1,1,1,0,1,1,0,0,0,0] => [3,4,2,5,6,1] => [3,4,2,5,6,1] => [5,3,2,4,1,6] => 0
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Description
The number of boxed occurrences of 132 in a permutation.
This is the number of occurrences of the pattern 132 such that any entry between the three matched entries is either larger than the largest matched entry or smaller than the smallest matched entry.
This is the number of occurrences of the pattern 132 such that any entry between the three matched entries is either larger than the largest matched entry or smaller than the smallest matched entry.
Map
inverse Foata bijection
Description
The inverse of Foata's bijection.
See Mp00067Foata bijection.
See Mp00067Foata bijection.
Map
weak order rowmotion
Description
Return the reversal of the permutation obtained by inverting the corresponding Laguerre heap.
This map is the composite of Mp00241invert Laguerre heap and Mp00064reverse.
Conjecturally, it is also the rowmotion on the weak order:
Any semidistributive lattice L has a canonical labeling of the edges of its Hasse diagram by its join irreducible elements (see [1] and [2]). Rowmotion on this lattice is the bijection which takes an element x∈L with a given set of down-labels to the unique element y∈L which has that set as its up-labels (see [2] and [3]). For example, if the lattice is the distributive lattice J(P) of order ideals of a finite poset P, then this reduces to ordinary rowmotion on the order ideals of P.
The weak order (a.k.a. permutohedral order) on the permutations in Sn is a semidistributive lattice. In this way, we obtain an action of rowmotion on the set of permutations in Sn.
Note that the dynamics of weak order rowmotion is poorly understood. A collection of nontrivial homomesies is described in Corollary 6.14 of [4].
This map is the composite of Mp00241invert Laguerre heap and Mp00064reverse.
Conjecturally, it is also the rowmotion on the weak order:
Any semidistributive lattice L has a canonical labeling of the edges of its Hasse diagram by its join irreducible elements (see [1] and [2]). Rowmotion on this lattice is the bijection which takes an element x∈L with a given set of down-labels to the unique element y∈L which has that set as its up-labels (see [2] and [3]). For example, if the lattice is the distributive lattice J(P) of order ideals of a finite poset P, then this reduces to ordinary rowmotion on the order ideals of P.
The weak order (a.k.a. permutohedral order) on the permutations in Sn is a semidistributive lattice. In this way, we obtain an action of rowmotion on the set of permutations in Sn.
Note that the dynamics of weak order rowmotion is poorly understood. A collection of nontrivial homomesies is described in Corollary 6.14 of [4].
Map
to 132-avoiding permutation
Description
Sends a Dyck path to a 132-avoiding permutation.
This bijection is defined in [1, Section 2].
This bijection is defined in [1, Section 2].
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