A115087 Column 1 of triangle A115085.

1, 2, 5, 21, 102, 579, 3601, 24426, 176858, 1359906, 10996740, 93136545, 821734072, 7529402477, 71404315785, 699210393923, 7053151126260, 73158494370744, 778922147312076, 8500606925203992, 94961268583354364, 1084632255967292304

Offset: 0

Author

Paul D. Hanna, Jan 13 2006

Keywords

• nonn

Crossrefs

Cf. A115085, A115086 (column 0), A115088 (column 2), A115089 (row sums); A115082.