n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 208 |
4 | 6608 |
5 | 438912 |
6 | 38672832 |
7 | 5956592640 |
8 | 1035058952448 |
9 | 288405058560000 |
10 | 83042522104507392 |
11 | 36519438671549890560 |
12 | 15719007594987094364160 |
13 | 10017433660808198506414080 |
[1,2,12,208,6608,438912,38672832,5956592640, 1035058952448,288405058560000,83042522104507392, 36519438671549890560,15719007594987094364160, 10017433660808198506414080] |