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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 13 |
| 3 | 113 |
| 4 | 149 |
| 5 | 1123 |
| 6 | 1237 |
| 7 | 11234 |
| 8 | 11239 |
| 9 | 12347 |
| 10 | 12359 |
| 11 | 12367 |
| 12 | 12379 |
| 13 | 13459 |
| 14 | 13789 |
| 15 | 111389 |
| 16 | 112279 |
| 17 | 112337 |
| 18 | 112346 |
| 19 | 112348 |
| 20 | 112349 |
| 21 | 112379 |
| 22 | 112679 |
| 23 | 113789 |
| 24 | 123457 |
| 25 | 123467 |
| 26 | 123469 |
| 27 | 123479 |
| 28 | 1112347 |
| 29 | 1112357 |
| 30 | 1112359 |
| 31 | 1113479 |
| 32 | 1122349 |
[1,2,13,113,149,1123,1237,11234,11239,12347,12359, 12367,12379,13459,13789,111389,112279,112337, 112346,112348,112349,112379,112679,113789,123457, 123467,123469,123479,1112347,1112357,1112359, 1113479,1122349] |