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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -16 |
| 2 | 32 |
| 3 | 18944 |
| 4 | -1904128 |
| 5 | 41160704 |
| 6 | 41418432512 |
| 7 | -13226611572736 |
| 8 | 1026478445821952 |
| 9 | 1419327244545818624 |
| 10 | -990157599155377143808 |
| 11 | 185269154824838954614784 |
| 12 | 314145305969818487050207232 |
[2,-16,32,18944,-1904128,41160704,41418432512, -13226611572736,1026478445821952, 1419327244545818624,-990157599155377143808, 185269154824838954614784, 314145305969818487050207232] |