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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 24 |
| 4 | 30 |
| 5 | 31 |
| 6 | 32 |
| 7 | 37 |
| 8 | 38 |
| 9 | 43 |
| 10 | 52 |
| 11 | 53 |
| 12 | 54 |
| 13 | 55 |
| 14 | 59 |
| 15 | 60 |
| 16 | 61 |
| 17 | 65 |
| 18 | 73 |
| 19 | 75 |
| 20 | 80 |
| 21 | 91 |
[1,11,24,30,31,32,37,38,43,52,53,54,55,59,60,61, 65,73,75,80,91] |