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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | -11 |
| 3 | 158 |
| 4 | -6513 |
| 5 | 202790 |
| 6 | -12710761 |
| 7 | 578257422 |
| 8 | -45608219247 |
| 9 | 8774909485920 |
| 10 | -579515898830751 |
| 11 | 115918088707226940 |
| 12 | -16737522590543449641 |
| 13 | 1282860173728469083872 |
| 14 | -189053227741259934603831 |
| 15 | 55171097827950314187327460 |
| 16 | -16235234399834578732807710581 |
[2,-11,158,-6513,202790,-12710761,578257422, -45608219247,8774909485920,-579515898830751, 115918088707226940,-16737522590543449641, 1282860173728469083872,-189053227741259934603831, 55171097827950314187327460, -16235234399834578732807710581] |