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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2277 |
| 2 | 1973317 |
| 3 | 652489468 |
| 4 | 90909213960 |
| 5 | 6779925069586 |
| 6 | 317675182498031 |
[1,2277,1973317,652489468,90909213960, 6779925069586,317675182498031] |