n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 6 |
4 | 156 |
5 | 18720 |
6 | 13443840 |
7 | 67756953600 |
8 | 2732085780480000 |
9 | 991419288020582400000 |
10 | 3597660477435617162035200000 |
11 | 143607093745702043133526671360000000 |
12 | 68788027941331539080620236035063808000000000 |
13 | 428344480781652673551035086691251861743206400000000000 |
[1,1,1,6,156,18720,13443840,67756953600, 2732085780480000,991419288020582400000, 3597660477435617162035200000, 143607093745702043133526671360000000, 68788027941331539080620236035063808000000000, 42834448078165267355103508669125186174320640000000\ 0000] |