n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 8 |
7 | 60 |
8 | 1728 |
9 | 967680 |
10 | 114661785600 |
11 | 215698302044209152000 |
12 | 26592225368515593301597083402240000000 |
13 | 723457119656730571214801208759677424070060705650559470796800000000000 |
[1,1,1,2,3,8,60,1728,967680,114661785600, 215698302044209152000, 26592225368515593301597083402240000000, 72345711965673057121480120875967742407006070565055\ 9470796800000000000] |