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| n | a(n) |
|---|---|
| 0 | 8 |
| 1 | 37502976 |
| 2 | 224340704157696 |
| 3 | 2000750410187341381632 |
| 4 | 21122119007324663457380794368 |
[8,37502976,224340704157696, 2000750410187341381632, 21122119007324663457380794368] |