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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 11 |
| 5 | 23 |
| 6 | 43 |
| 7 | 59 |
| 8 | 107 |
| 9 | 151 |
| 10 | 251 |
| 11 | 619 |
| 12 | 919 |
| 13 | 1019 |
| 14 | 3067 |
| 15 | 3691 |
| 16 | 4091 |
[2,3,7,11,23,43,59,107,151,251,619,919,1019,3067, 3691,4091] |