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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 37 |
| 6 | 79 |
| 7 | 239 |
| 8 | 4649 |
| 9 | 62003 |
| 10 | 538987 |
| 11 | 35121409 |
| 12 | 265371653 |
[2,3,5,7,37,79,239,4649,62003,538987,35121409, 265371653] |