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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -4 |
| 3 | 31 |
| 4 | -396 |
| 5 | 7577 |
| 6 | -206552 |
| 7 | 7672397 |
| 8 | -374053288 |
| 9 | 23212430217 |
| 10 | -1787864588588 |
| 11 | 167392122209915 |
| 12 | -18724565706803572 |
| 13 | 2466364070480613097 |
| 14 | -377841494631185170944 |
| 15 | 66613038231424017296385 |
| 16 | -13390635287181333029590160 |
[0,1,-4,31,-396,7577,-206552,7672397,-374053288, 23212430217,-1787864588588,167392122209915, -18724565706803572,2466364070480613097, -377841494631185170944,66613038231424017296385, -13390635287181333029590160] |