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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 7 |
| 3 | 13 |
| 4 | 19 |
| 5 | 23 |
| 6 | 37 |
| 7 | 47 |
| 8 | 53 |
| 9 | 59 |
| 10 | 71 |
| 11 | 73 |
| 12 | 83 |
| 13 | 101 |
| 14 | 103 |
| 15 | 127 |
| 16 | 149 |
| 17 | 151 |
| 18 | 191 |
| 19 | 211 |
| 20 | 317 |
[2,7,13,19,23,37,47,53,59,71,73,83,101,103,127, 149,151,191,211,317] |