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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 0 |
| 2 | -80 |
| 3 | 1344 |
| 4 | 256768 |
| 5 | 478720 |
| 6 | -2027088128 |
| 7 | 273426399232 |
| 8 | 158140462424064 |
| 9 | -1238001757208576 |
| 10 | -9930099869342171136 |
| 11 | 4752907831646575394816 |
| 12 | 4870481397825377085751296 |
[2,0,-80,1344,256768,478720,-2027088128, 273426399232,158140462424064,-1238001757208576, -9930099869342171136,4752907831646575394816, 4870481397825377085751296] |