n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 840 |
4 | 1663200 |
5 | 174356582400 |
6 | 1561112121913344000 |
7 | 1754317855900734514790400000 |
8 | 341362923889542287855059017400320000000 |
9 | 15163751542692044063740921044974247390216192000000000 |
10 | 195932150519417838363658963697014150610807423633478962380800000000000 |
[1,2,12,840,1663200,174356582400, 1561112121913344000,1754317855900734514790400000, 341362923889542287855059017400320000000, 15163751542692044063740921044974247390216192000000\ 000, 19593215051941783836365896369701415061080742363347\ 8962380800000000000] |