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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -5 |
| 3 | -42 |
| 4 | -22 |
| 5 | 575 |
| 6 | 1677 |
| 7 | -3332 |
| 8 | -27740 |
| 9 | -23859 |
| 10 | 259055 |
| 11 | 832370 |
| 12 | -981714 |
| 13 | -10980437 |
| 14 | -13342175 |
| 15 | 85437240 |
| 16 | 319499912 |
| 17 | -192522535 |
| 18 | -3642631389 |
| 19 | -5753449394 |
| 20 | 24313788850 |
| 21 | 108290637399 |
| 22 | -13811840779 |
| 23 | -1096315586380 |
| 24 | -2152355798868 |
| 25 | 6240751807525 |
[0,1,-5,-42,-22,575,1677,-3332,-27740,-23859, 259055,832370,-981714,-10980437,-13342175, 85437240,319499912,-192522535,-3642631389, -5753449394,24313788850,108290637399,-13811840779, -1096315586380,-2152355798868,6240751807525] |