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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 53 |
| 3 | 613 |
| 4 | 853 |
| 5 | 1453 |
| 6 | 2213 |
| 7 | 4813 |
| 8 | 6133 |
| 9 | 10133 |
| 10 | 16253 |
| 11 | 19853 |
| 12 | 22453 |
| 13 | 23813 |
| 14 | 37853 |
| 15 | 41413 |
| 16 | 61613 |
| 17 | 63853 |
| 18 | 75653 |
| 19 | 102253 |
| 20 | 114013 |
| 21 | 117053 |
| 22 | 136133 |
| 23 | 146213 |
| 24 | 153133 |
| 25 | 178613 |
| 26 | 186253 |
| 27 | 198013 |
| 28 | 222613 |
| 29 | 253133 |
| 30 | 285613 |
| 31 | 315013 |
| 32 | 320053 |
| 33 | 325133 |
[13,53,613,853,1453,2213,4813,6133,10133,16253, 19853,22453,23813,37853,41413,61613,63853,75653, 102253,114013,117053,136133,146213,153133,178613, 186253,198013,222613,253133,285613,315013,320053, 325133] |