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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -12 |
| 2 | 118 |
| 3 | 168 |
| 4 | -72918 |
| 5 | -19180260 |
| 6 | 7673967390 |
| 7 | -1668580628400 |
| 8 | 206209417380690 |
| 9 | 17149380702207300 |
| 10 | -8171629445251404090 |
| 11 | -13542042383228350058760 |
| 12 | 18432243823017229137614970 |
[2,-12,118,168,-72918,-19180260,7673967390, -1668580628400,206209417380690,17149380702207300, -8171629445251404090,-13542042383228350058760, 18432243823017229137614970] |