n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | -36 |
3 | 1584 |
4 | -165600 |
5 | 32619600 |
6 | -10679785200 |
7 | 5358907814400 |
8 | -3890309297817600 |
9 | 3912346626113721600 |
10 | -5268281311122784416000 |
11 | 9242007099323679696153600 |
12 | -20649044539048813400549836800 |
[1,4,-36,1584,-165600,32619600,-10679785200, 5358907814400,-3890309297817600, 3912346626113721600,-5268281311122784416000, 9242007099323679696153600, -20649044539048813400549836800] |