A265854 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A265854 as a simple table

n	a(n)
1	0
2	0
3	10
4	248
5	14928
6	829824
7	90999072
8	9589855104
9	1679970554880
10	287741257800960
11	73925012711635200
12	18719082274603622400

[0,0,10,248,14928,829824,90999072,9589855104, 1679970554880,287741257800960,73925012711635200, 18719082274603622400]