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| n | a(n) |
|---|---|
| 1 | 23 |
| 2 | 31 |
| 3 | 47 |
| 4 | 59 |
| 5 | 695689 |
| 6 | 698471 |
| 7 | 883517 |
| 8 | 992609 |
| 9 | 992737 |
| 10 | 993037 |
| 11 | 1314239 |
| 12 | 1324361 |
| 13 | 1324571 |
| 14 | 1326511 |
| 15 | 1327289 |
| 16 | 1766291 |
| 17 | 3174029 |
[23,31,47,59,695689,698471,883517,992609,992737, 993037,1314239,1324361,1324571,1326511,1327289, 1766291,3174029] |