A271986 - 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

A271986 as a simple table

n	a(n)
3	0
4	299
5	5643
6	1357259
7	273624711
8	17832200896811
9	26748301350411
10	44580503598539
11	62412976762503
12	106993205379371
13	106993205384715
14	106993206736331
15	106993479003783

[0,299,5643,1357259,273624711,17832200896811, 26748301350411,44580503598539,62412976762503, 106993205379371,106993205384715,106993206736331, 106993479003783]