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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 81 |
| 3 | 11092 |
| 4 | 7598355 |
| 5 | 31208037240 |
| 6 | 729358354663001 |
| 7 | 92792498733436652359 |
[3,81,11092,7598355,31208037240,729358354663001, 92792498733436652359] |