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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 101 |
| 7 | 131 |
| 8 | 151 |
| 9 | 191 |
| 10 | 313 |
| 11 | 353 |
| 12 | 373 |
| 13 | 757 |
| 14 | 797 |
| 15 | 919 |
| 16 | 10301 |
| 17 | 10501 |
| 18 | 11311 |
[2,3,5,7,11,101,131,151,191,313,353,373,757,797, 919,10301,10501,11311] |