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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 23 |
| 5 | 25 |
| 6 | 32 |
| 7 | 52 |
| 8 | 56 |
| 9 | 254 |
| 10 | 256 |
| 11 | 322 |
| 12 | 326 |
| 13 | 524 |
| 14 | 566 |
| 15 | 2564 |
| 16 | 3262 |
| 17 | 5246 |
| 18 | 5662 |
| 19 | 25642 |
[2,3,5,23,25,32,52,56,254,256,322,326,524,566, 2564,3262,5246,5662,25642] |