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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -256 |
| 3 | -531185 |
| 4 | -4294403215 |
| 5 | -95363000657073 |
| 6 | -4738284730302658391 |
| 7 | -459981771468075494207385 |
| 8 | -79227701254823507875355278590 |
| 9 | -22528320196093613328344381426130010 |
| 10 | -9999977451048811940735941180766259658078 |
[1,-1,-256,-531185,-4294403215,-95363000657073, -4738284730302658391,-459981771468075494207385, -79227701254823507875355278590, -22528320196093613328344381426130010, -9999977451048811940735941180766259658078] |