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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | -8 |
| 2 | 992 |
| 3 | 3456 |
| 4 | 2799872 |
| 5 | 106544128 |
| 6 | 37168683008 |
| 7 | 4255728041984 |
| 8 | 1543239875821568 |
| 9 | 355403465489907712 |
| 10 | 155864209273777553408 |
| 11 | 58585654628727325196288 |
| 12 | 32351390426329866422976512 |
[4,-8,992,3456,2799872,106544128,37168683008, 4255728041984,1543239875821568,355403465489907712, 155864209273777553408,58585654628727325196288, 32351390426329866422976512] |