n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 30 |
6 | 330 |
7 | 13530 |
8 | 5019630 |
9 | 69777876630 |
10 | 351229105131280530 |
11 | 24509789089304573335878465330 |
12 | 8608552999157278550998626549630446732052243030 |
[1,1,2,6,30,330,13530,5019630,69777876630, 351229105131280530,24509789089304573335878465330, 8608552999157278550998626549630446732052243030] |