A305684 - 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

A305684 as a simple table

n	a(n)
1	1
2	908
3	29339
4	2403703
5	185389115
6	14724197226
7	1172824606532
8	93679147557172
9	7488807032051960
10	598902694841380350
11	47903727320863846345
12	3831871282738890360162
13	306523980297786519252964

[1,908,29339,2403703,185389115,14724197226, 1172824606532,93679147557172,7488807032051960, 598902694841380350,47903727320863846345, 3831871282738890360162,306523980297786519252964]