A027853 Functions on n points with a single labeled point.

0, 1, 4, 15, 52, 175, 571, 1838, 5834, 18363, 57372, 178271, 551344, 1698782, 5217266, 15979465, 48825416, 148877730, 453124341, 1376890744, 4177819301, 12659943750, 38317731349, 115851225052, 349924919167

Offset

0,3

Links

Table of n, a(n) for n=0..24.

Formula

Convolution of A038002 with A001372.

Crossrefs

Sequence in context: A117202 A291011 A137213 * A132894 A117917 A369671

Adjacent sequences: A027850 A027851 A027852 * A027854 A027855 A027856

Keyword

nonn

Author

Christian G. Bower

Status

approved