n | a(n) |
---|---|
0 | 1 |
1 | -6 |
2 | 28 |
3 | -72 |
4 | -176 |
5 | 1824 |
6 | 11968 |
7 | -177792 |
8 | -1062656 |
9 | 25864704 |
10 | 155204608 |
11 | -5535270912 |
12 | -33211559936 |
13 | 1633165123584 |
14 | 9798991003648 |
15 | -635421070098432 |
16 | -3812526419542016 |
17 | 315212388818878464 |
18 | 1891274332917465088 |
19 | -194181169538677604352 |
20 | -1165087017232048848896 |
[1,-6,28,-72,-176,1824,11968,-177792,-1062656, 25864704,155204608,-5535270912,-33211559936, 1633165123584,9798991003648,-635421070098432, -3812526419542016,315212388818878464, 1891274332917465088,-194181169538677604352, -1165087017232048848896] |