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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -864 |
| 2 | 269568 |
| 3 | -75240576 |
| 4 | 19930724352 |
| 5 | -5124295980864 |
| 6 | 1292387210099712 |
| 7 | -321604751662509312 |
| 8 | 79241739168490536960 |
| 9 | -19376923061550541800672 |
| 10 | 4709786462808256974509568 |
| 11 | -1139188440993923671697455488 |
[1,-864,269568,-75240576,19930724352, -5124295980864,1292387210099712, -321604751662509312,79241739168490536960, -19376923061550541800672, 4709786462808256974509568, -1139188440993923671697455488] |