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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 17 |
| 4 | 19 |
| 5 | 31 |
| 6 | 37 |
| 7 | 43 |
| 8 | 91 |
| 9 | 339 |
| 10 | 367 |
| 11 | 407 |
| 12 | 1135 |
| 13 | 1175 |
| 14 | 8653 |
| 15 | 11987 |
| 16 | 15793 |
[2,3,17,19,31,37,43,91,339,367,407,1135,1175,8653, 11987,15793] |