n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 8 |
5 | 96 |
6 | 3456 |
7 | 497664 |
8 | 286654464 |
9 | 825564856320 |
10 | 11888133931008000 |
11 | 1027134771639091200000 |
12 | 532466665617704878080000000 |
13 | 1932215036193527461576704000000000 |
[1,1,1,2,8,96,3456,497664,286654464,825564856320, 11888133931008000,1027134771639091200000, 532466665617704878080000000, 1932215036193527461576704000000000] |