The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 13 |
| 3 | 17 |
| 4 | 19 |
| 5 | 311 |
| 6 | 313 |
| 7 | 317 |
| 8 | 31097317 |
| 9 | 731097313 |
| 10 | 109731097319 |
| 11 | 73109731097317 |
| 12 | 7310973109731097319 |
| 13 | 10973109731097310973109731097310973109731097317 |
| 14 | 31097310973109731097310973109731097310973109731097317 |
[11,13,17,19,311,313,317,31097317,731097313, 109731097319,73109731097317,7310973109731097319, 10973109731097310973109731097310973109731097317, 31097310973109731097310973109731097310973109731097\ 317] |