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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -9 |
| 2 | 97 |
| 3 | -3647 |
| 4 | 232345 |
| 5 | -22882827 |
| 6 | 3272680621 |
| 7 | -637916495327 |
| 8 | 162606798592913 |
| 9 | -52505736635681875 |
| 10 | 20944212007429454773 |
| 11 | -10113746586163575672327 |
| 12 | 5814258990406275572824793 |
[2,-9,97,-3647,232345,-22882827,3272680621, -637916495327,162606798592913,-52505736635681875, 20944212007429454773,-10113746586163575672327, 5814258990406275572824793] |