n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | -6 |
4 | 34 |
5 | -220 |
6 | 1688 |
7 | -14868 |
8 | 147684 |
9 | -1631376 |
10 | 19821912 |
11 | -262573080 |
12 | 3764276712 |
13 | -58044604176 |
14 | 957653604672 |
15 | -16828739439120 |
16 | 313742795670288 |
17 | -6183918938706048 |
18 | 128463999017594016 |
19 | -2804979941504113248 |
[1,0,2,-6,34,-220,1688,-14868,147684,-1631376, 19821912,-262573080,3764276712,-58044604176, 957653604672,-16828739439120,313742795670288, -6183918938706048,128463999017594016, -2804979941504113248] |