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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 23 |
| 3 | 239 |
| 4 | 23911 |
| 5 | 2391113 |
| 6 | 239111363 |
| 7 | 23911136351 |
| 8 | 2391113635129 |
| 9 | 239111363512969 |
| 10 | 23911136351296933 |
| 11 | 2391113635129693349 |
| 12 | 2391113635129693349159 |
| 13 | 239111363512969334915917 |
[2,23,239,23911,2391113,239111363,23911136351, 2391113635129,239111363512969,23911136351296933, 2391113635129693349,2391113635129693349159, 239111363512969334915917] |