n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 0 |
4 | 23 |
5 | 0 |
6 | 684 |
7 | 0 |
8 | 34760 |
9 | 0 |
10 | 2493096 |
11 | 0 |
12 | 228253267 |
13 | 0 |
14 | 25091028820 |
15 | 0 |
16 | 3179942075960 |
17 | 0 |
18 | 451649016238160 |
19 | 0 |
20 | 70421753109861592 |
21 | 0 |
22 | 11869050034269797984 |
23 | 0 |
24 | 2136758627313217104448 |
25 | 0 |
[1,0,2,0,23,0,684,0,34760,0,2493096,0,228253267,0, 25091028820,0,3179942075960,0,451649016238160,0, 70421753109861592,0,11869050034269797984,0, 2136758627313217104448,0] |