The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 17 |
| 3 | 37 |
| 4 | 97 |
| 5 | 457 |
| 6 | 557 |
| 7 | 1117 |
| 8 | 1217 |
| 9 | 1297 |
| 10 | 2237 |
| 11 | 2377 |
| 12 | 2897 |
| 13 | 4937 |
| 14 | 7237 |
| 15 | 9277 |
| 16 | 10457 |
| 17 | 18797 |
| 18 | 21317 |
| 19 | 23557 |
| 20 | 24077 |
| 21 | 27817 |
| 22 | 29437 |
| 23 | 30757 |
| 24 | 34757 |
| 25 | 38917 |
| 26 | 39157 |
| 27 | 48157 |
| 28 | 48817 |
| 29 | 50497 |
| 30 | 55897 |
| 31 | 60617 |
| 32 | 62297 |
| 33 | 64997 |
| 34 | 72617 |
| 35 | 81157 |
| 36 | 82457 |
| 37 | 90017 |
| 38 | 94597 |
| 39 | 107837 |
| 40 | 108877 |
| 41 | 111857 |
[13,17,37,97,457,557,1117,1217,1297,2237,2377, 2897,4937,7237,9277,10457,18797,21317,23557,24077, 27817,29437,30757,34757,38917,39157,48157,48817, 50497,55897,60617,62297,64997,72617,81157,82457, 90017,94597,107837,108877,111857] |