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| n | a(n) |
|---|---|
| 1 | 131 |
| 2 | 173 |
| 3 | 179 |
| 4 | 191 |
| 5 | 197 |
| 6 | 283 |
| 7 | 293 |
| 8 | 367 |
| 9 | 383 |
| 10 | 401 |
| 11 | 547 |
| 12 | 587 |
| 13 | 641 |
| 14 | 701 |
| 15 | 709 |
| 16 | 757 |
| 17 | 797 |
| 18 | 827 |
| 19 | 12197 |
| 20 | 12289 |
| 21 | 53881 |
| 22 | 54779 |
| 23 | 68927 |
| 24 | 37898818253 |
[131,173,179,191,197,283,293,367,383,401,547,587, 641,701,709,757,797,827,12197,12289,53881,54779, 68927,37898818253] |