Identifier
-
Mp00233:
Dyck paths
—skew partition⟶
Skew partitions
Mp00187: Skew partitions —conjugate⟶ Skew partitions
Mp00181: Skew partitions —row lengths⟶ Integer compositions
St000657: Integer compositions ⟶ ℤ
Values
[1,0] => [[1],[]] => [[1],[]] => [1] => 1
[1,0,1,0] => [[1,1],[]] => [[2],[]] => [2] => 2
[1,1,0,0] => [[2],[]] => [[1,1],[]] => [1,1] => 1
[1,0,1,0,1,0] => [[1,1,1],[]] => [[3],[]] => [3] => 3
[1,0,1,1,0,0] => [[2,1],[]] => [[2,1],[]] => [2,1] => 1
[1,1,0,0,1,0] => [[2,2],[1]] => [[2,2],[1]] => [1,2] => 1
[1,1,0,1,0,0] => [[3],[]] => [[1,1,1],[]] => [1,1,1] => 1
[1,1,1,0,0,0] => [[2,2],[]] => [[2,2],[]] => [2,2] => 2
[1,0,1,0,1,0,1,0] => [[1,1,1,1],[]] => [[4],[]] => [4] => 4
[1,0,1,0,1,1,0,0] => [[2,1,1],[]] => [[3,1],[]] => [3,1] => 1
[1,0,1,1,0,0,1,0] => [[2,2,1],[1]] => [[3,2],[1]] => [2,2] => 2
[1,0,1,1,0,1,0,0] => [[3,1],[]] => [[2,1,1],[]] => [2,1,1] => 1
[1,0,1,1,1,0,0,0] => [[2,2,1],[]] => [[3,2],[]] => [3,2] => 2
[1,1,0,0,1,0,1,0] => [[2,2,2],[1,1]] => [[3,3],[2]] => [1,3] => 1
[1,1,0,0,1,1,0,0] => [[3,2],[1]] => [[2,2,1],[1]] => [1,2,1] => 1
[1,1,0,1,0,0,1,0] => [[3,3],[2]] => [[2,2,2],[1,1]] => [1,1,2] => 1
[1,1,0,1,0,1,0,0] => [[4],[]] => [[1,1,1,1],[]] => [1,1,1,1] => 1
[1,1,0,1,1,0,0,0] => [[3,3],[1]] => [[2,2,2],[1]] => [1,2,2] => 1
[1,1,1,0,0,0,1,0] => [[2,2,2],[1]] => [[3,3],[1]] => [2,3] => 2
[1,1,1,0,0,1,0,0] => [[3,2],[]] => [[2,2,1],[]] => [2,2,1] => 1
[1,1,1,0,1,0,0,0] => [[2,2,2],[]] => [[3,3],[]] => [3,3] => 3
[1,1,1,1,0,0,0,0] => [[3,3],[]] => [[2,2,2],[]] => [2,2,2] => 2
[1,0,1,0,1,0,1,0,1,0] => [[1,1,1,1,1],[]] => [[5],[]] => [5] => 5
[1,0,1,0,1,0,1,1,0,0] => [[2,1,1,1],[]] => [[4,1],[]] => [4,1] => 1
[1,0,1,0,1,1,0,0,1,0] => [[2,2,1,1],[1]] => [[4,2],[1]] => [3,2] => 2
[1,0,1,0,1,1,0,1,0,0] => [[3,1,1],[]] => [[3,1,1],[]] => [3,1,1] => 1
[1,0,1,0,1,1,1,0,0,0] => [[2,2,1,1],[]] => [[4,2],[]] => [4,2] => 2
[1,0,1,1,0,0,1,0,1,0] => [[2,2,2,1],[1,1]] => [[4,3],[2]] => [2,3] => 2
[1,0,1,1,0,0,1,1,0,0] => [[3,2,1],[1]] => [[3,2,1],[1]] => [2,2,1] => 1
[1,0,1,1,0,1,0,0,1,0] => [[3,3,1],[2]] => [[3,2,2],[1,1]] => [2,1,2] => 1
[1,0,1,1,0,1,0,1,0,0] => [[4,1],[]] => [[2,1,1,1],[]] => [2,1,1,1] => 1
[1,0,1,1,0,1,1,0,0,0] => [[3,3,1],[1]] => [[3,2,2],[1]] => [2,2,2] => 2
[1,0,1,1,1,0,0,0,1,0] => [[2,2,2,1],[1]] => [[4,3],[1]] => [3,3] => 3
[1,0,1,1,1,0,0,1,0,0] => [[3,2,1],[]] => [[3,2,1],[]] => [3,2,1] => 1
[1,0,1,1,1,0,1,0,0,0] => [[2,2,2,1],[]] => [[4,3],[]] => [4,3] => 3
[1,0,1,1,1,1,0,0,0,0] => [[3,3,1],[]] => [[3,2,2],[]] => [3,2,2] => 2
[1,1,0,0,1,0,1,0,1,0] => [[2,2,2,2],[1,1,1]] => [[4,4],[3]] => [1,4] => 1
[1,1,0,0,1,0,1,1,0,0] => [[3,2,2],[1,1]] => [[3,3,1],[2]] => [1,3,1] => 1
[1,1,0,0,1,1,0,0,1,0] => [[3,3,2],[2,1]] => [[3,3,2],[2,1]] => [1,2,2] => 1
[1,1,0,0,1,1,0,1,0,0] => [[4,2],[1]] => [[2,2,1,1],[1]] => [1,2,1,1] => 1
[1,1,0,0,1,1,1,0,0,0] => [[3,3,2],[1,1]] => [[3,3,2],[2]] => [1,3,2] => 1
[1,1,0,1,0,0,1,0,1,0] => [[3,3,3],[2,2]] => [[3,3,3],[2,2]] => [1,1,3] => 1
[1,1,0,1,0,0,1,1,0,0] => [[4,3],[2]] => [[2,2,2,1],[1,1]] => [1,1,2,1] => 1
[1,1,0,1,0,1,0,0,1,0] => [[4,4],[3]] => [[2,2,2,2],[1,1,1]] => [1,1,1,2] => 1
[1,1,0,1,0,1,0,1,0,0] => [[5],[]] => [[1,1,1,1,1],[]] => [1,1,1,1,1] => 1
[1,1,0,1,0,1,1,0,0,0] => [[4,4],[2]] => [[2,2,2,2],[1,1]] => [1,1,2,2] => 1
[1,1,0,1,1,0,0,0,1,0] => [[3,3,3],[2,1]] => [[3,3,3],[2,1]] => [1,2,3] => 1
[1,1,0,1,1,0,0,1,0,0] => [[4,3],[1]] => [[2,2,2,1],[1]] => [1,2,2,1] => 1
[1,1,0,1,1,0,1,0,0,0] => [[3,3,3],[1,1]] => [[3,3,3],[2]] => [1,3,3] => 1
[1,1,0,1,1,1,0,0,0,0] => [[4,4],[1]] => [[2,2,2,2],[1]] => [1,2,2,2] => 1
[1,1,1,0,0,0,1,0,1,0] => [[2,2,2,2],[1,1]] => [[4,4],[2]] => [2,4] => 2
[1,1,1,0,0,0,1,1,0,0] => [[3,2,2],[1]] => [[3,3,1],[1]] => [2,3,1] => 1
[1,1,1,0,0,1,0,0,1,0] => [[3,3,2],[2]] => [[3,3,2],[1,1]] => [2,2,2] => 2
[1,1,1,0,0,1,0,1,0,0] => [[4,2],[]] => [[2,2,1,1],[]] => [2,2,1,1] => 1
[1,1,1,0,0,1,1,0,0,0] => [[3,3,2],[1]] => [[3,3,2],[1]] => [2,3,2] => 2
[1,1,1,0,1,0,0,0,1,0] => [[2,2,2,2],[1]] => [[4,4],[1]] => [3,4] => 3
[1,1,1,0,1,0,0,1,0,0] => [[3,2,2],[]] => [[3,3,1],[]] => [3,3,1] => 1
[1,1,1,0,1,0,1,0,0,0] => [[2,2,2,2],[]] => [[4,4],[]] => [4,4] => 4
[1,1,1,0,1,1,0,0,0,0] => [[3,3,2],[]] => [[3,3,2],[]] => [3,3,2] => 2
[1,1,1,1,0,0,0,0,1,0] => [[3,3,3],[2]] => [[3,3,3],[1,1]] => [2,2,3] => 2
[1,1,1,1,0,0,0,1,0,0] => [[4,3],[]] => [[2,2,2,1],[]] => [2,2,2,1] => 1
[1,1,1,1,0,0,1,0,0,0] => [[3,3,3],[1]] => [[3,3,3],[1]] => [2,3,3] => 2
[1,1,1,1,0,1,0,0,0,0] => [[4,4],[]] => [[2,2,2,2],[]] => [2,2,2,2] => 2
[1,1,1,1,1,0,0,0,0,0] => [[3,3,3],[]] => [[3,3,3],[]] => [3,3,3] => 3
[1,0,1,0,1,0,1,0,1,0,1,0] => [[1,1,1,1,1,1],[]] => [[6],[]] => [6] => 6
[1,0,1,0,1,0,1,0,1,1,0,0] => [[2,1,1,1,1],[]] => [[5,1],[]] => [5,1] => 1
[1,0,1,0,1,0,1,1,0,0,1,0] => [[2,2,1,1,1],[1]] => [[5,2],[1]] => [4,2] => 2
[1,0,1,0,1,0,1,1,0,1,0,0] => [[3,1,1,1],[]] => [[4,1,1],[]] => [4,1,1] => 1
[1,0,1,0,1,0,1,1,1,0,0,0] => [[2,2,1,1,1],[]] => [[5,2],[]] => [5,2] => 2
[1,0,1,0,1,1,0,0,1,0,1,0] => [[2,2,2,1,1],[1,1]] => [[5,3],[2]] => [3,3] => 3
[1,0,1,0,1,1,0,0,1,1,0,0] => [[3,2,1,1],[1]] => [[4,2,1],[1]] => [3,2,1] => 1
[1,0,1,0,1,1,0,1,0,0,1,0] => [[3,3,1,1],[2]] => [[4,2,2],[1,1]] => [3,1,2] => 1
[1,0,1,0,1,1,0,1,0,1,0,0] => [[4,1,1],[]] => [[3,1,1,1],[]] => [3,1,1,1] => 1
[1,0,1,0,1,1,0,1,1,0,0,0] => [[3,3,1,1],[1]] => [[4,2,2],[1]] => [3,2,2] => 2
[1,0,1,0,1,1,1,0,0,0,1,0] => [[2,2,2,1,1],[1]] => [[5,3],[1]] => [4,3] => 3
[1,0,1,0,1,1,1,0,0,1,0,0] => [[3,2,1,1],[]] => [[4,2,1],[]] => [4,2,1] => 1
[1,0,1,0,1,1,1,0,1,0,0,0] => [[2,2,2,1,1],[]] => [[5,3],[]] => [5,3] => 3
[1,0,1,0,1,1,1,1,0,0,0,0] => [[3,3,1,1],[]] => [[4,2,2],[]] => [4,2,2] => 2
[1,0,1,1,0,0,1,0,1,0,1,0] => [[2,2,2,2,1],[1,1,1]] => [[5,4],[3]] => [2,4] => 2
[1,0,1,1,0,0,1,0,1,1,0,0] => [[3,2,2,1],[1,1]] => [[4,3,1],[2]] => [2,3,1] => 1
[1,0,1,1,0,0,1,1,0,0,1,0] => [[3,3,2,1],[2,1]] => [[4,3,2],[2,1]] => [2,2,2] => 2
[1,0,1,1,0,0,1,1,0,1,0,0] => [[4,2,1],[1]] => [[3,2,1,1],[1]] => [2,2,1,1] => 1
[1,0,1,1,0,0,1,1,1,0,0,0] => [[3,3,2,1],[1,1]] => [[4,3,2],[2]] => [2,3,2] => 2
[1,0,1,1,0,1,0,0,1,0,1,0] => [[3,3,3,1],[2,2]] => [[4,3,3],[2,2]] => [2,1,3] => 1
[1,0,1,1,0,1,0,0,1,1,0,0] => [[4,3,1],[2]] => [[3,2,2,1],[1,1]] => [2,1,2,1] => 1
[1,0,1,1,0,1,0,1,0,0,1,0] => [[4,4,1],[3]] => [[3,2,2,2],[1,1,1]] => [2,1,1,2] => 1
[1,0,1,1,0,1,0,1,0,1,0,0] => [[5,1],[]] => [[2,1,1,1,1],[]] => [2,1,1,1,1] => 1
[1,0,1,1,0,1,0,1,1,0,0,0] => [[4,4,1],[2]] => [[3,2,2,2],[1,1]] => [2,1,2,2] => 1
[1,0,1,1,0,1,1,0,0,0,1,0] => [[3,3,3,1],[2,1]] => [[4,3,3],[2,1]] => [2,2,3] => 2
[1,0,1,1,0,1,1,0,0,1,0,0] => [[4,3,1],[1]] => [[3,2,2,1],[1]] => [2,2,2,1] => 1
[1,0,1,1,0,1,1,0,1,0,0,0] => [[3,3,3,1],[1,1]] => [[4,3,3],[2]] => [2,3,3] => 2
[1,0,1,1,0,1,1,1,0,0,0,0] => [[4,4,1],[1]] => [[3,2,2,2],[1]] => [2,2,2,2] => 2
[1,0,1,1,1,0,0,0,1,0,1,0] => [[2,2,2,2,1],[1,1]] => [[5,4],[2]] => [3,4] => 3
[1,0,1,1,1,0,0,0,1,1,0,0] => [[3,2,2,1],[1]] => [[4,3,1],[1]] => [3,3,1] => 1
[1,0,1,1,1,0,0,1,0,0,1,0] => [[3,3,2,1],[2]] => [[4,3,2],[1,1]] => [3,2,2] => 2
[1,0,1,1,1,0,0,1,0,1,0,0] => [[4,2,1],[]] => [[3,2,1,1],[]] => [3,2,1,1] => 1
[1,0,1,1,1,0,0,1,1,0,0,0] => [[3,3,2,1],[1]] => [[4,3,2],[1]] => [3,3,2] => 2
[1,0,1,1,1,0,1,0,0,0,1,0] => [[2,2,2,2,1],[1]] => [[5,4],[1]] => [4,4] => 4
[1,0,1,1,1,0,1,0,0,1,0,0] => [[3,2,2,1],[]] => [[4,3,1],[]] => [4,3,1] => 1
[1,0,1,1,1,0,1,0,1,0,0,0] => [[2,2,2,2,1],[]] => [[5,4],[]] => [5,4] => 4
[1,0,1,1,1,0,1,1,0,0,0,0] => [[3,3,2,1],[]] => [[4,3,2],[]] => [4,3,2] => 2
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Description
The smallest part of an integer composition.
Map
row lengths
Description
The sequence of row lengths from top to bottom.
Map
conjugate
Description
The conjugate of the skew partition.
The conjugate of a skew partition $\lambda$ is the skew partition $\lambda^*$ whose Ferrers diagram is obtained from the Ferrers diagram of $\lambda$ by interchanging rows with columns.
This is also called the associated partition or the transpose in the literature.
The conjugate of a skew partition $\lambda$ is the skew partition $\lambda^*$ whose Ferrers diagram is obtained from the Ferrers diagram of $\lambda$ by interchanging rows with columns.
This is also called the associated partition or the transpose in the literature.
Map
skew partition
Description
The parallelogram polyomino corresponding to a Dyck path, interpreted as a skew partition.
Let $D$ be a Dyck path of semilength $n$. The parallelogram polyomino $\gamma(D)$ is defined as follows: let $\tilde D = d_0 d_1 \dots d_{2n+1}$ be the Dyck path obtained by prepending an up step and appending a down step to $D$. Then, the upper path of $\gamma(D)$ corresponds to the sequence of steps of $\tilde D$ with even indices, and the lower path of $\gamma(D)$ corresponds to the sequence of steps of $\tilde D$ with odd indices.
This map returns the skew partition definded by the diagram of $\gamma(D)$.
Let $D$ be a Dyck path of semilength $n$. The parallelogram polyomino $\gamma(D)$ is defined as follows: let $\tilde D = d_0 d_1 \dots d_{2n+1}$ be the Dyck path obtained by prepending an up step and appending a down step to $D$. Then, the upper path of $\gamma(D)$ corresponds to the sequence of steps of $\tilde D$ with even indices, and the lower path of $\gamma(D)$ corresponds to the sequence of steps of $\tilde D$ with odd indices.
This map returns the skew partition definded by the diagram of $\gamma(D)$.
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