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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | 55 |
| 2 | -95 |
| 3 | 18167 |
| 4 | -22118287 |
| 5 | 51054985 |
| 6 | -10169116451 |
| 7 | 211416785949641 |
| 8 | -36975734097804001 |
| 9 | 764839113579826244863 |
| 10 | -45988950723178614316250507 |
| 11 | 61286790868827586032169553 |
| 12 | -25771544562210083470157315437 |
[-1,55,-95,18167,-22118287,51054985,-10169116451, 211416785949641,-36975734097804001, 764839113579826244863,-45988950723178614316250507, 61286790868827586032169553, -25771544562210083470157315437] |