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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 23 |
| 4 | 3023 |
| 5 | 2393023 |
| 6 | 3023172393023 |
| 7 | 2393023313023172393023 |
| 8 | 3023172393023282393023313023172393023 |
| 9 | 239302331302317239302383023172393023282393023313023172393023 |
[2,3,23,3023,2393023,3023172393023, 2393023313023172393023, 3023172393023282393023313023172393023, 23930233130231723930238302317239302328239302331302\ 3172393023] |