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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 13 |
| 3 | 17 |
| 4 | 19 |
| 5 | 101 |
| 6 | 103 |
| 7 | 107 |
| 8 | 109 |
| 9 | 1009 |
| 10 | 10007 |
| 11 | 10009 |
| 12 | 100003 |
| 13 | 1000003 |
| 14 | 100000007 |
| 15 | 1000000007 |
| 16 | 1000000009 |
| 17 | 100000000003 |
| 18 | 100000000000000003 |
| 19 | 1000000000000000003 |
| 20 | 1000000000000000009 |
| 21 | 10000000000000000000009 |
| 22 | 1000000000000000000000007 |
[11,13,17,19,101,103,107,109,1009,10007,10009, 100003,1000003,100000007,1000000007,1000000009, 100000000003,100000000000000003, 1000000000000000003,1000000000000000009, 10000000000000000000009,1000000000000000000000007] |