n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 0 |
3 | -18 |
4 | 208 |
5 | -2400 |
6 | 36504 |
7 | -663754 |
8 | 13808320 |
9 | -324176418 |
10 | 8487126400 |
11 | -245122390601 |
12 | 7741417124880 |
13 | -265402847130421 |
14 | 9816338228638872 |
15 | -389618889514254225 |
16 | 16518399076342421248 |
17 | -745025763154442071130 |
18 | 35619835529954597786208 |
19 | -1799459812004380374518790 |
20 | 95780758238408017088795600 |
[1,-1,0,-18,208,-2400,36504,-663754,13808320, -324176418,8487126400,-245122390601,7741417124880, -265402847130421,9816338228638872, -389618889514254225,16518399076342421248, -745025763154442071130,35619835529954597786208, -1799459812004380374518790, 95780758238408017088795600] |