n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | 3 |
4 | -14 |
5 | 80 |
6 | -526 |
7 | 3906 |
8 | -32192 |
9 | 290016 |
10 | -2816056 |
11 | 29050120 |
12 | -313052024 |
13 | 3442154352 |
14 | -37060529416 |
15 | 353733158520 |
16 | -1866295941824 |
17 | -42066299646976 |
18 | 2247562825065152 |
19 | -73960387213018176 |
20 | 2159580310527713536 |
[1,0,-1,3,-14,80,-526,3906,-32192,290016,-2816056, 29050120,-313052024,3442154352,-37060529416, 353733158520,-1866295941824,-42066299646976, 2247562825065152,-73960387213018176, 2159580310527713536] |