n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 2 |
3 | -7 |
4 | 26 |
5 | -95 |
6 | 344 |
7 | -1256 |
8 | 4654 |
9 | -17470 |
10 | 66234 |
11 | -253192 |
12 | 974992 |
13 | -3778966 |
14 | 14729200 |
15 | -57683066 |
16 | 226806148 |
17 | -894791874 |
18 | 3540105138 |
19 | -14039128725 |
20 | 55786507642 |
21 | -222047783006 |
22 | 885073034920 |
23 | -3532110787193 |
24 | 14110281656038 |
[1,-1,2,-7,26,-95,344,-1256,4654,-17470,66234, -253192,974992,-3778966,14729200,-57683066, 226806148,-894791874,3540105138,-14039128725, 55786507642,-222047783006,885073034920, -3532110787193,14110281656038] |