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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 23 |
| 5 | 31 |
| 6 | 47 |
| 7 | 79 |
| 8 | 127 |
| 9 | 157 |
| 10 | 191 |
| 11 | 223 |
| 12 | 317 |
| 13 | 367 |
| 14 | 379 |
| 15 | 383 |
| 16 | 479 |
| 17 | 727 |
| 18 | 751 |
| 19 | 887 |
| 20 | 1087 |
| 21 | 1151 |
| 22 | 1277 |
| 23 | 1279 |
| 24 | 1451 |
| 25 | 1471 |
| 26 | 1531 |
| 27 | 1663 |
| 28 | 1783 |
| 29 | 1789 |
| 30 | 1951 |
| 31 | 2297 |
| 32 | 2557 |
| 33 | 2927 |
| 34 | 3067 |
| 35 | 3259 |
| 36 | 3319 |
| 37 | 3581 |
| 38 | 3583 |
| 39 | 3967 |
| 40 | 4253 |
| 41 | 4349 |
| 42 | 5119 |
| 43 | 5231 |
| 44 | 5503 |
| 45 | 5807 |
| 46 | 5821 |
| 47 | 6079 |
| 48 | 6143 |
| 49 | 6271 |
| 50 | 6653 |
| 51 | 6871 |
| 52 | 6911 |
| 53 | 7039 |
| 54 | 7103 |
| 55 | 7151 |
[2,3,7,23,31,47,79,127,157,191,223,317,367,379, 383,479,727,751,887,1087,1151,1277,1279,1451,1471, 1531,1663,1783,1789,1951,2297,2557,2927,3067,3259, 3319,3581,3583,3967,4253,4349,5119,5231,5503,5807, 5821,6079,6143,6271,6653,6871,6911,7039,7103,7151] |