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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -4 |
| 3 | 32 |
| 4 | 80 |
| 5 | -34048 |
| 6 | 5048512 |
| 7 | -984048128 |
| 8 | 246504417536 |
| 9 | -76892124225536 |
| 10 | 29350173573487616 |
| 11 | -13506119868179701760 |
| 12 | 7388967312556159062016 |
| 13 | -4745632815309786449379328 |
| 14 | 3538391474251613805070172160 |
[1,0,-4,32,80,-34048,5048512,-984048128, 246504417536,-76892124225536,29350173573487616, -13506119868179701760,7388967312556159062016, -4745632815309786449379328, 3538391474251613805070172160] |