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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 13 |
| 1 | 131 |
| 2 | 1319 |
| 3 | 131909 |
| 4 | 13190909 |
| 5 | 1319090933 |
| 6 | 131909093341 |
| 7 | 13190909334101 |
| 8 | 1319090933410141 |
| 9 | 131909093341014131 |
| 10 | 13190909334101413129 |
| 11 | 131909093341014131297 |
| 12 | 13190909334101413129739 |
[13,131,1319,131909,13190909,1319090933, 131909093341,13190909334101,1319090933410141, 131909093341014131,13190909334101413129, 131909093341014131297,13190909334101413129739] |