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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 13 |
| 4 | 22 |
| 5 | 23 |
| 6 | 43 |
| 7 | 121 |
| 8 | 122 |
| 9 | 157 |
| 10 | 158 |
| 11 | 214 |
| 12 | 619 |
| 13 | 5471 |
| 14 | 5557 |
| 15 | 5561 |
| 16 | 5791 |
| 17 | 5818 |
| 18 | 5819 |
| 19 | 5821 |
| 20 | 5822 |
| 21 | 38299 |
| 22 | 38357 |
| 23 | 38362 |
| 24 | 38363 |
| 25 | 38366 |
| 26 | 58711 |
| 27 | 58714 |
| 28 | 58966 |
| 29 | 58967 |
| 30 | 154213 |
| 31 | 154214 |
| 32 | 154219 |
| 33 | 154222 |
| 34 | 154223 |
| 35 | 154534 |
| 36 | 154537 |
| 37 | 154538 |
| 38 | 154543 |
| 39 | 154997 |
| 40 | 351742 |
[1,2,13,22,23,43,121,122,157,158,214,619,5471, 5557,5561,5791,5818,5819,5821,5822,38299,38357, 38362,38363,38366,58711,58714,58966,58967,154213, 154214,154219,154222,154223,154534,154537,154538, 154543,154997,351742] |