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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 101 |
| 7 | 113 |
| 8 | 331 |
| 9 | 337 |
| 10 | 991 |
| 11 | 1013 |
| 12 | 1019 |
| 13 | 3037 |
| 14 | 7079 |
| 15 | 9091 |
| 16 | 11131 |
| 17 | 11383 |
| 18 | 11393 |
| 19 | 11939 |
| 20 | 33151 |
| 21 | 33353 |
| 22 | 33757 |
| 23 | 70079 |
| 24 | 77191 |
| 25 | 77323 |
| 26 | 77747 |
| 27 | 77797 |
| 28 | 77969 |
| 29 | 77999 |
| 30 | 99787 |
| 31 | 100019 |
| 32 | 101141 |
| 33 | 101333 |
| 34 | 101383 |
| 35 | 101747 |
| 36 | 101797 |
| 37 | 101939 |
| 38 | 101999 |
| 39 | 303151 |
| 40 | 303727 |
[2,3,5,7,11,101,113,331,337,991,1013,1019,3037, 7079,9091,11131,11383,11393,11939,33151,33353, 33757,70079,77191,77323,77747,77797,77969,77999, 99787,100019,101141,101333,101383,101747,101797, 101939,101999,303151,303727] |