n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 72 |
4 | 14040 |
5 | 707616000 |
6 | 2299654269739008000 |
7 | 25353370781704805143366427867873280000 |
8 | 3361021040447648920437074194752848938805829494939344230020451929790873600000 |
[2,6,72,14040,707616000,2299654269739008000, 25353370781704805143366427867873280000, 33610210404476489204370741947528489388058294949393\ 44230020451929790873600000] |