409112

Appears in sequences

• T(n,n-1), array T as in A054115.at n=8A054116
• Triangle read by rows: T(n,k) is the number of deco polyominoes of height n with k cells in the first column. (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=52A100822
• Total number of parts greater than 1 in all partitions of n minus the number of partitions of n into parts each less than n.at n=43A198381
• Array read by antidiagonals: T(m,n) = Sum( n <= i <= m+n-1 ) i!.at n=43A211370