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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | -8 |
| 3 | 224 |
| 4 | -11024 |
| 5 | 893024 |
| 6 | -108056024 |
| 7 | 18326044736 |
| 8 | -4143959973152 |
| 9 | 1203673701847616 |
| 10 | -436556568694967720 |
| 11 | 193325069835999174688 |
| 12 | -102646741662885247765552 |
| 13 | 64363759451798102692787104 |
[0,0,-8,224,-11024,893024,-108056024,18326044736, -4143959973152,1203673701847616, -436556568694967720,193325069835999174688, -102646741662885247765552, 64363759451798102692787104] |