n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 4 |
4 | 24 |
5 | 256 |
6 | 3360 |
7 | 53824 |
8 | 1016064 |
9 | 22095616 |
10 | 543966720 |
11 | 14955833344 |
12 | 454227400704 |
13 | 15103031627776 |
14 | 545668238868480 |
15 | 21286707282264064 |
16 | 891735287528914944 |
17 | 39926103010743156736 |
[0,1,0,4,24,256,3360,53824,1016064,22095616, 543966720,14955833344,454227400704,15103031627776, 545668238868480,21286707282264064, 891735287528914944,39926103010743156736] |