The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 4 |
| 3 | 5 |
| 4 | 7 |
| 5 | 13 |
| 6 | 17 |
| 7 | 23 |
| 8 | 29 |
| 9 | 43 |
| 10 | 47 |
| 11 | 83 |
| 12 | 137 |
| 13 | 433 |
| 14 | 449 |
| 15 | 509 |
| 16 | 569 |
| 17 | 571 |
| 18 | 2971 |
| 19 | 4723 |
| 20 | 5387 |
| 21 | 9677 |
| 22 | 14431 |
| 23 | 30757 |
| 24 | 50833 |
| 25 | 104911 |
| 26 | 201107 |
| 27 | 433781 |
| 28 | 604711 |
| 29 | 931517 |
| 30 | 1049897 |
| 31 | 1285607 |
| 32 | 1636007 |
[3,4,5,7,13,17,23,29,43,47,83,137,433,449,509,569, 571,2971,4723,5387,9677,14431,30757,50833,104911, 201107,433781,604711,931517,1049897,1285607, 1636007] |