n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | -3 |
4 | 9 |
5 | 17 |
6 | -145 |
7 | 21 |
8 | 2961 |
9 | -9119 |
10 | -58273 |
11 | 530541 |
12 | 177177 |
13 | -24815503 |
14 | 109736783 |
15 | 845196933 |
16 | -11562650847 |
17 | 9274089409 |
18 | 818943535295 |
19 | -6145817165859 |
20 | -30817061557719 |
21 | 818240768280017 |
22 | -3016149953173201 |
23 | -67401109608160779 |
[1,1,-1,-3,9,17,-145,21,2961,-9119,-58273,530541, 177177,-24815503,109736783,845196933,-11562650847, 9274089409,818943535295,-6145817165859, -30817061557719,818240768280017,-3016149953173201, -67401109608160779] |