3732220800

Appears in sequences

• Number of cells in the 2nd rows of all deco polyominoes of height n. A deco polyomino is a directed column-convex polyomino in which the height, measured along the diagonal, is attained only in the last column.at n=11A134437
• Number of white corners in all permutations of {1,2,...,n} (for definition see the Eriksson-Linusson references).at n=11A140712