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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -8 |
| 3 | -584 |
| 4 | 383104 |
| 5 | 2262229120 |
| 6 | -120223904353280 |
| 7 | -57502732780460764160 |
| 8 | 247530403723531598578155520 |
| 9 | 9589835030046843645163231485460480 |
| 10 | -3343768718134086569119429099709242848051200 |
[1,-8,-584,383104,2262229120,-120223904353280, -57502732780460764160,247530403723531598578155520, 9589835030046843645163231485460480, -3343768718134086569119429099709242848051200] |