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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 3 |
| 5 | 11 |
| 6 | 13 |
| 7 | 1129 |
| 8 | 17 |
| 9 | 19 |
| 10 | 37 |
| 11 | 23 |
| 12 | 5 |
| 13 | 313 |
| 14 | 29 |
| 15 | 31 |
| 16 | 311 |
| 17 | 1129 |
| 18 | 37 |
| 19 | 313 |
| 20 | 41 |
| 21 | 43 |
[1,3,5,7,3,11,13,1129,17,19,37,23,5,313,29,31,311, 1129,37,313,41,43] |