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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 27 |
| 6 | 48 |
| 7 | 60 |
| 8 | 74 |
| 9 | 161 |
| 10 | 242 |
| 11 | 269 |
| 12 | 518 |
| 13 | 1092 |
| 14 | 1220 |
| 15 | 1883 |
| 16 | 2618 |
| 17 | 3266 |
| 18 | 6699 |
| 19 | 8855 |
| 20 | 17022 |
| 21 | 17454 |
| 22 | 101222 |
[2,3,6,9,27,48,60,74,161,242,269,518,1092,1220, 1883,2618,3266,6699,8855,17022,17454,101222] |