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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | -12 |
| 5 | -75 |
| 6 | -290 |
| 7 | -779 |
| 8 | -504 |
| 9 | 21353 |
| 10 | 309658 |
| 11 | 2312649 |
| 12 | 4942652 |
| 13 | -30773795 |
| 14 | 551161910 |
| 15 | 5842489277 |
| 16 | -202099628912 |
| 17 | -2781070598703 |
| 18 | 37094805544626 |
| 19 | 667109649353745 |
| 20 | -13372667222408444 |
| 21 | -244753093572037115 |
| 22 | 5558587672503819534 |
| 23 | 110344062209219143685 |
[1,2,1,-12,-75,-290,-779,-504,21353,309658, 2312649,4942652,-30773795,551161910,5842489277, -202099628912,-2781070598703,37094805544626, 667109649353745,-13372667222408444, -244753093572037115,5558587672503819534, 110344062209219143685] |