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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 13 |
| 6 | 39 |
| 7 | 43 |
| 8 | 172 |
| 9 | 177 |
| 10 | 885 |
| 11 | 891 |
| 12 | 5346 |
| 13 | 5353 |
| 14 | 37471 |
| 15 | 37479 |
| 16 | 299832 |
| 17 | 299841 |
| 18 | 2698569 |
| 19 | 2698579 |
| 20 | 26985790 |
| 21 | 26985801 |
| 22 | 296843811 |
| 23 | 296843823 |
| 24 | 3562125876 |
| 25 | 3562125889 |
| 26 | 46307636557 |
| 27 | 46307636571 |
| 28 | 648306911994 |
| 29 | 648306912009 |
| 30 | 9724603680135 |
| 31 | 9724603680151 |
| 32 | 155593658882416 |
[2,3,3,5,10,13,39,43,172,177,885,891,5346,5353, 37471,37479,299832,299841,2698569,2698579, 26985790,26985801,296843811,296843823,3562125876, 3562125889,46307636557,46307636571,648306911994, 648306912009,9724603680135,9724603680151, 155593658882416] |