A134380 A007318 * A084938.
1, 1, 1, 1, 3, 1, 1, 8, 5, 1, 1, 24, 19, 7, 1, 1, 89, 71, 34, 9, 1, 1, 415, 290, 150, 53, 11, 1, 1, 2372, 1362, 672, 269, 76, 13, 1, 1, 16072, 7486, 3252, 1319, 436, 103, 15, 1, 1, 125673, 48054, 17618, 6671, 2331, 659, 134, 17, 1
Offset: 0
Examples
First few rows of the triangle: 1; 1, 1; 1, 3, 1; 1, 8, 5, 1; 1, 24, 19, 7, 1; 1, 89, 71, 34, 9, 1; 1, 415, 290, 150, 53, 11, 1; ...
Formula
Binomial transform of A084938, as infinite lower triangular matrices.
Comments