n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | -16 |
3 | 248 |
4 | -3456 |
5 | -164448 |
6 | 17537280 |
7 | 5001348480 |
8 | -3047690956800 |
9 | 999150768960000 |
10 | -194340969261158400 |
11 | -28292890791044597760 |
12 | 48811395838790000148480 |
13 | -15658656394130132870062080 |
14 | -19215487887156327014813859840 |
15 | 37972554002174500707798919249920 |
[0,2,-16,248,-3456,-164448,17537280,5001348480, -3047690956800,999150768960000, -194340969261158400,-28292890791044597760, 48811395838790000148480, -15658656394130132870062080, -19215487887156327014813859840, 37972554002174500707798919249920] |