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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 11 |
| 5 | 12 |
| 6 | 23 |
| 7 | 75 |
| 8 | 101 |
| 9 | 122 |
| 10 | 173 |
| 11 | 647 |
| 12 | 2015 |
| 13 | 2684 |
| 14 | 11700 |
| 15 | 19625 |
[2,3,5,11,12,23,75,101,122,173,647,2015,2684, 11700,19625] |