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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 51 |
| 4 | 52 |
| 5 | 53 |
| 6 | 54 |
| 7 | 55 |
| 8 | 56 |
| 9 | 57 |
| 10 | 58 |
| 11 | 59 |
| 12 | 60 |
| 13 | 501 |
| 14 | 512 |
| 15 | 523 |
| 16 | 534 |
| 17 | 545 |
| 18 | 556 |
| 19 | 567 |
| 20 | 578 |
| 21 | 589 |
| 22 | 600 |
| 23 | 5001 |
| 24 | 5011 |
| 25 | 5021 |
| 26 | 5031 |
| 27 | 5041 |
| 28 | 5051 |
| 29 | 5061 |
| 30 | 5071 |
| 31 | 5081 |
| 32 | 5091 |
| 33 | 5102 |
| 34 | 5112 |
| 35 | 5122 |
| 36 | 5132 |
| 37 | 5142 |
| 38 | 5152 |
| 39 | 5162 |
| 40 | 5172 |
| 41 | 5182 |
| 42 | 5192 |
| 43 | 5203 |
| 44 | 5213 |
[1,6,51,52,53,54,55,56,57,58,59,60,501,512,523, 534,545,556,567,578,589,600,5001,5011,5021,5031, 5041,5051,5061,5071,5081,5091,5102,5112,5122,5132, 5142,5152,5162,5172,5182,5192,5203,5213] |