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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -17 |
| 5 | -11 |
| 6 | -1079 |
| 7 | -18197 |
| 8 | 522343 |
| 9 | 9746101 |
| 10 | 81040793 |
| 11 | 11644041203 |
| 12 | -4125329557 |
| 13 | -307899664572491 |
| 14 | -2016123696536039 |
| 15 | -16774330027463 |
| 16 | 2515861894697661407 |
| 17 | 1393885832035349216101 |
| 18 | 10228935377594654887237 |
| 19 | 12758279004615697800956803 |
[1,1,1,1,-17,-11,-1079,-18197,522343,9746101, 81040793,11644041203,-4125329557,-307899664572491, -2016123696536039,-16774330027463, 2515861894697661407,1393885832035349216101, 10228935377594654887237, 12758279004615697800956803] |