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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | -1394 |
| 3 | -34480 |
| 4 | 5821516 |
| 5 | 247659488 |
| 6 | -40457575736 |
| 7 | -2490185806912 |
| 8 | 392988531506320 |
| 9 | 32189435503872128 |
| 10 | -4899280026394954016 |
| 11 | -508516209857615258368 |
| 12 | 74506523384461350441664 |
| 13 | 9493051794744527363939840 |
| 14 | -1336252229871124217359780736 |
[1,8,-1394,-34480,5821516,247659488,-40457575736, -2490185806912,392988531506320,32189435503872128, -4899280026394954016,-508516209857615258368, 74506523384461350441664,9493051794744527363939840, -1336252229871124217359780736] |