n | a(n) |
---|---|
0 | 1 |
1 | 120 |
2 | 7167072 |
3 | 25015771681981520 |
4 | 1251577752496617773723676099629193 |
5 | 655010254318810176195603896415342984711897764371763012689776 |
[1,120,7167072,25015771681981520, 1251577752496617773723676099629193, 65501025431881017619560389641534298471189776437176\ 3012689776] |