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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 15 |
| 3 | 17 |
| 4 | 18 |
| 5 | 21 |
| 6 | 27 |
| 7 | 29 |
| 8 | 30 |
| 9 | 37 |
| 10 | 47 |
| 11 | 50 |
| 12 | 64 |
| 13 | 125 |
| 14 | 251 |
| 15 | 602 |
| 16 | 611 |
| 17 | 1184 |
| 18 | 1468 |
| 19 | 5570 |
| 20 | 10679 |
| 21 | 15798 |
| 22 | 21237 |
[6,15,17,18,21,27,29,30,37,47,50,64,125,251,602, 611,1184,1468,5570,10679,15798,21237] |