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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 8 |
| 4 | 12 |
| 5 | 15 |
| 6 | 18 |
| 7 | 20 |
| 8 | 30 |
| 9 | 80 |
| 10 | 143 |
| 11 | 152 |
| 12 | 164 |
| 13 | 176 |
| 14 | 239 |
| 15 | 291 |
| 16 | 324 |
| 17 | 504 |
| 18 | 594 |
| 19 | 983 |
| 20 | 2894 |
[2,5,8,12,15,18,20,30,80,143,152,164,176,239,291, 324,504,594,983,2894] |