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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 11 |
| 11 | 21 |
| 12 | 32 |
| 13 | 33 |
| 14 | 43 |
| 15 | 44 |
| 16 | 74 |
| 17 | 85 |
| 18 | 96 |
| 19 | 98 |
| 20 | 99 |
| 21 | 101 |
| 22 | 201 |
| 23 | 202 |
| 24 | 302 |
| 25 | 703 |
| 26 | 804 |
| 27 | 806 |
| 28 | 807 |
| 29 | 808 |
| 30 | 907 |
| 31 | 908 |
| 32 | 909 |
[1,2,3,4,5,6,7,8,9,11,21,32,33,43,44,74,85,96,98, 99,101,201,202,302,703,804,806,807,808,907,908, 909] |