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| n | a(n) |
|---|---|
| 1 | 31 |
| 2 | 41 |
| 3 | 61 |
| 4 | 251 |
| 5 | 349 |
| 6 | 379 |
| 7 | 389 |
| 8 | 401 |
| 9 | 419 |
| 10 | 431 |
| 11 | 449 |
| 12 | 461 |
| 13 | 491 |
| 14 | 619 |
| 15 | 631 |
| 16 | 739 |
| 17 | 769 |
| 18 | 811 |
| 19 | 821 |
| 20 | 829 |
| 21 | 1009 |
| 22 | 1061 |
| 23 | 1171 |
| 24 | 1181 |
| 25 | 1229 |
| 26 | 1231 |
| 27 | 1279 |
| 28 | 1289 |
| 29 | 1321 |
| 30 | 1361 |
| 31 | 1451 |
| 32 | 1471 |
| 33 | 1499 |
| 34 | 1601 |
| 35 | 1699 |
| 36 | 1721 |
| 37 | 1759 |
| 38 | 1861 |
| 39 | 2081 |
| 40 | 2131 |
| 41 | 2239 |
| 42 | 2339 |
| 43 | 2341 |
| 44 | 2411 |
| 45 | 2551 |
| 46 | 2579 |
| 47 | 2591 |
| 48 | 2789 |
[31,41,61,251,349,379,389,401,419,431,449,461,491, 619,631,739,769,811,821,829,1009,1061,1171,1181, 1229,1231,1279,1289,1321,1361,1451,1471,1499,1601, 1699,1721,1759,1861,2081,2131,2239,2339,2341,2411, 2551,2579,2591,2789] |