n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | 4 |
4 | 5 |
5 | -32 |
6 | -55 |
7 | 390 |
8 | 961 |
9 | -6432 |
10 | -22463 |
11 | 134550 |
12 | 649761 |
13 | -3443208 |
14 | -22456551 |
15 | 105379838 |
16 | 911433121 |
17 | -3787776224 |
18 | -42942180863 |
19 | 157078439014 |
20 | 2324211078513 |
21 | -7384507525560 |
22 | -143088139308519 |
[1,-1,-1,4,5,-32,-55,390,961,-6432,-22463,134550, 649761,-3443208,-22456551,105379838,911433121, -3787776224,-42942180863,157078439014, 2324211078513,-7384507525560,-143088139308519] |