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A027853
Functions on n points with a single labeled point.
1
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
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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
