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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | -10 |
| 3 | 316 |
| 4 | 22612 |
| 5 | 9070184 |
| 6 | -8377559560 |
| 7 | 43763281573552 |
| 8 | 525766973409879184 |
| 9 | 35700104721503125675808 |
| 10 | -5575424140185495445892279200 |
| 11 | 4921551444873804590294004874254784 |
[1,2,-10,316,22612,9070184,-8377559560, 43763281573552,525766973409879184, 35700104721503125675808, -5575424140185495445892279200, 4921551444873804590294004874254784] |