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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -16 |
| 3 | -19619 |
| 4 | -4294403215 |
| 5 | -298022109672568357 |
| 6 | -10314423865939993706950978963 |
| 7 | -256923577039780637227768848162543179896514 |
| 8 | -6277101735175091675863380669683250419973895230549186236030 |
[1,-1,-16,-19619,-4294403215,-298022109672568357, -10314423865939993706950978963, -256923577039780637227768848162543179896514, -6277101735175091675863380669683250419973895230549\ 186236030] |