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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 7 |
| 4 | 13 |
| 5 | 23 |
| 6 | 29 |
| 7 | 31 |
| 8 | 43 |
| 9 | 47 |
| 10 | 53 |
| 11 | 59 |
| 12 | 79 |
| 13 | 83 |
| 14 | 97 |
| 15 | 137 |
| 16 | 139 |
| 17 | 173 |
| 18 | 191 |
| 19 | 227 |
| 20 | 239 |
| 21 | 241 |
| 22 | 257 |
| 23 | 263 |
| 24 | 281 |
| 25 | 317 |
| 26 | 331 |
| 27 | 337 |
| 28 | 349 |
| 29 | 353 |
| 30 | 359 |
| 31 | 373 |
| 32 | 383 |
| 33 | 421 |
| 34 | 439 |
| 35 | 443 |
| 36 | 449 |
| 37 | 461 |
| 38 | 463 |
| 39 | 467 |
| 40 | 479 |
| 41 | 499 |
| 42 | 509 |
| 43 | 523 |
| 44 | 547 |
| 45 | 557 |
| 46 | 563 |
| 47 | 569 |
| 48 | 593 |
| 49 | 599 |
| 50 | 607 |
| 51 | 619 |
| 52 | 641 |
| 53 | 643 |
| 54 | 653 |
| 55 | 659 |
[2,5,7,13,23,29,31,43,47,53,59,79,83,97,137,139, 173,191,227,239,241,257,263,281,317,331,337,349, 353,359,373,383,421,439,443,449,461,463,467,479, 499,509,523,547,557,563,569,593,599,607,619,641, 643,653,659] |