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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 11 |
| 5 | 13 |
| 6 | 19 |
| 7 | 21 |
| 8 | 29 |
| 9 | 31 |
| 10 | 169 |
| 11 | 419 |
| 12 | 461 |
| 13 | 3269 |
| 14 | 7127 |
| 15 | 3877019 |
| 16 | 22783559 |
| 17 | 215308729 |
[3,5,7,11,13,19,21,29,31,169,419,461,3269,7127, 3877019,22783559,215308729] |