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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 13 |
| 3 | 37 |
| 4 | 97 |
| 5 | 103 |
| 6 | 223 |
| 7 | 307 |
| 8 | 331 |
| 9 | 457 |
| 10 | 541 |
| 11 | 571 |
| 12 | 853 |
| 13 | 877 |
| 14 | 1087 |
| 15 | 1297 |
| 16 | 1423 |
| 17 | 1483 |
| 18 | 1621 |
| 19 | 1867 |
| 20 | 1993 |
| 21 | 2683 |
| 22 | 3457 |
| 23 | 3511 |
| 24 | 3691 |
| 25 | 3761 |
| 26 | 3847 |
| 27 | 4513 |
| 28 | 4657 |
| 29 | 4783 |
| 30 | 4951 |
| 31 | 5227 |
| 32 | 5521 |
| 33 | 5647 |
| 34 | 5861 |
| 35 | 6337 |
| 36 | 6547 |
| 37 | 6823 |
| 38 | 7481 |
| 39 | 7541 |
| 40 | 7681 |
| 41 | 7717 |
| 42 | 7753 |
| 43 | 7873 |
| 44 | 8287 |
| 45 | 8521 |
| 46 | 8887 |
| 47 | 9007 |
| 48 | 9397 |
| 49 | 10267 |
| 50 | 10453 |
[7,13,37,97,103,223,307,331,457,541,571,853,877, 1087,1297,1423,1483,1621,1867,1993,2683,3457,3511, 3691,3761,3847,4513,4657,4783,4951,5227,5521,5647, 5861,6337,6547,6823,7481,7541,7681,7717,7753,7873, 8287,8521,8887,9007,9397,10267,10453] |