55657

Appears in sequences

• Number of nonequivalent dissections of a polygon into n quadrilaterals by nonintersecting diagonals rooted at a cell up to rotation and reflection.at n=8A005035
• Row sums of triangle K(m, n), inverse to triangle T(m,n) in A020921.at n=15A038200
• Natural numbers written out with their digits grouped in sets of 5 (leading zeros omitted).at n=20A091341
• Number of tilings of a 7 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles.at n=9A219971
• Number of tilings of a 9 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles.at n=7A219973
• Apparently solves the identity: find sequence B that represents the numbers of ordered compositions of n using the terms of A, and vice versa.at n=19A224342
• Array read by antidiagonals: T(n,k) = number of nonequivalent dissections of a polygon into n k-gons by nonintersecting diagonals rooted at a cell up to rotation and reflection (k >= 3).at n=53A295259