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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -7 |
| 3 | 73 |
| 4 | 209 |
| 5 | -144271 |
| 6 | 16935049 |
| 7 | -1681509255 |
| 8 | 121927140641 |
| 9 | 7429711841377 |
| 10 | -7368737635468135 |
| 11 | 2672443484700215337 |
| 12 | -714451608564077085455 |
| 13 | 102412390388191040345041 |
| 14 | 45342663705298790615837737 |
| 15 | -56227306534265498361644426407 |
[1,1,-7,73,209,-144271,16935049,-1681509255, 121927140641,7429711841377,-7368737635468135, 2672443484700215337,-714451608564077085455, 102412390388191040345041, 45342663705298790615837737, -56227306534265498361644426407] |