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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 39 |
| 4 | 79 |
| 5 | 359 |
| 6 | 451 |
| 7 | 1031 |
| 8 | 1039 |
| 9 | 11311 |
| 10 | 30227 |
| 11 | 47599 |
| 12 | 55731 |
| 13 | 307099 |
| 14 | 351831 |
| 15 | 418851 |
[3,7,39,79,359,451,1031,1039,11311,30227,47599, 55731,307099,351831,418851] |