n | a(n) |
---|---|
1 | 0 |
2 | 6 |
3 | -12 |
4 | -84 |
5 | 1200 |
6 | 3120 |
7 | -249312 |
8 | 920928 |
9 | 86274816 |
10 | -1232035584 |
11 | -40970012160 |
12 | 1391730516480 |
13 | 20983074318336 |
14 | -1798371774277632 |
[0,6,-12,-84,1200,3120,-249312,920928,86274816, -1232035584,-40970012160,1391730516480, 20983074318336,-1798371774277632] |