n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 60 |
4 | 2520 |
5 | 181440 |
6 | 19958400 |
7 | 3113510400 |
8 | 653837184000 |
9 | 177843714048000 |
10 | 60822550204416000 |
11 | 25545471085854720000 |
12 | 12926008369442488320000 |
13 | 7755605021665492992000000 |
14 | 5444434725209176080384000000 |
15 | 4420880996869850977271808000000 |
[0,3,60,2520,181440,19958400,3113510400, 653837184000,177843714048000,60822550204416000, 25545471085854720000,12926008369442488320000, 7755605021665492992000000, 5444434725209176080384000000, 4420880996869850977271808000000] |