n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 630 |
4 | 81729648000 |
5 | 256963707943060088053923840000000 |
6 | 30978254928194376001814792318154658399137088909801072314160618743948902400000000000000 |
[1,2,630,81729648000, 256963707943060088053923840000000, 30978254928194376001814792318154658399137088909801\ 072314160618743948902400000000000000] |