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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 23 |
| 4 | 347 |
| 5 | 349 |
| 6 | 311 |
| 7 | 391627 |
| 8 | 3471331 |
| 9 | 384067 |
| 10 | 2310175897 |
| 11 | 239111323273399 |
| 12 | 23167 |
| 13 | 3784097136227 |
| 14 | 235983149249 |
| 15 | 3428116271 |
| 16 | 37111677121283 |
| 17 | 23293 |
| 18 | 3471949133311 |
| 19 | 231314228398154359 |
| 20 | 378112153101159371 |
| 21 | 2379127163381 |
[2,3,23,347,349,311,391627,3471331,384067, 2310175897,239111323273399,23167,3784097136227, 235983149249,3428116271,37111677121283,23293, 3471949133311,231314228398154359, 378112153101159371,2379127163381] |