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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -4 |
| 3 | 35 |
| 4 | -515 |
| 5 | 10662 |
| 6 | -284105 |
| 7 | 9255185 |
| 8 | -356346618 |
| 9 | 15831168657 |
| 10 | -797090201295 |
| 11 | 44853942667096 |
| 12 | -2789671436309939 |
| 13 | 190023794141566309 |
| 14 | -14069208182313480292 |
| 15 | 1124994237749880216439 |
| 16 | -96618656489949875115879 |
| 17 | 8870165918232448251272870 |
[1,1,-4,35,-515,10662,-284105,9255185,-356346618, 15831168657,-797090201295,44853942667096, -2789671436309939,190023794141566309, -14069208182313480292,1124994237749880216439, -96618656489949875115879, 8870165918232448251272870] |