n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 6 |
4 | 21 |
5 | 146 |
6 | 1246 |
7 | 13767 |
8 | 252509 |
9 | 5755625 |
10 | 177353720 |
11 | 8354131403 |
12 | 523250794396 |
13 | 44173651472383 |
14 | 5428616779817049 |
15 | 920678621074132173 |
16 | 212277158481925445968 |
17 | 69198443091508695982216 |
[1,1,6,21,146,1246,13767,252509,5755625,177353720, 8354131403,523250794396,44173651472383, 5428616779817049,920678621074132173, 212277158481925445968,69198443091508695982216] |