n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 6 |
4 | -18 |
5 | 123 |
6 | -855 |
7 | 8610 |
8 | -92540 |
9 | 1220765 |
10 | -17627085 |
11 | 291506270 |
12 | -5265113502 |
13 | 105134332743 |
14 | -2272750891411 |
15 | 53258927842666 |
16 | -1338863892701400 |
17 | 36033888424535961 |
18 | -1032074699069841561 |
[0,1,-1,6,-18,123,-855,8610,-92540,1220765, -17627085,291506270,-5265113502,105134332743, -2272750891411,53258927842666,-1338863892701400, 36033888424535961,-1032074699069841561] |