n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 2 |
4 | -2 |
5 | 8 |
6 | -30 |
7 | 66 |
8 | -392 |
9 | 1574 |
10 | -9440 |
11 | 37770 |
12 | -377696 |
13 | 1510796 |
14 | -18129546 |
15 | 108777284 |
16 | -870218264 |
17 | 6961746128 |
18 | -111387938042 |
19 | 668327628270 |
20 | -12029897308852 |
21 | 96239178470828 |
22 | -1154870141649926 |
23 | 11548701416499282 |
24 | -254071431162984196 |
25 | 2032571449303873588 |
[1,0,2,-2,8,-30,66,-392,1574,-9440,37770,-377696, 1510796,-18129546,108777284,-870218264,6961746128, -111387938042,668327628270,-12029897308852, 96239178470828,-1154870141649926, 11548701416499282,-254071431162984196, 2032571449303873588] |