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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -4 |
| 2 | 76 |
| 3 | -3256 |
| 4 | 245008 |
| 5 | -28441216 |
| 6 | 4700478784 |
| 7 | -1047088053376 |
| 8 | 302112622479616 |
| 9 | -109527844826856448 |
| 10 | 48716214653800569856 |
| 11 | -26075068739563056830464 |
| 12 | 16529214537740143196901376 |
[1,-4,76,-3256,245008,-28441216,4700478784, -1047088053376,302112622479616, -109527844826856448,48716214653800569856, -26075068739563056830464, 16529214537740143196901376] |