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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 7 |
| 3 | 23 |
| 4 | 59 |
| 5 | 71 |
| 6 | 71 |
| 7 | 71 |
| 8 | 3643 |
| 9 | 62939 |
| 10 | 292627 |
| 11 | 292627 |
| 12 | 1089427 |
| 13 | 2374649 |
| 14 | 2374649 |
[2,7,23,59,71,71,71,3643,62939,292627,292627, 1089427,2374649,2374649] |