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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 12 |
| 3 | 12 |
| 4 | 30 |
| 5 | 30 |
| 6 | 18 |
| 7 | 36 |
| 8 | 36 |
| 9 | 90 |
| 10 | 90 |
| 11 | 24 |
| 12 | 60 |
| 13 | 48 |
| 14 | 120 |
| 15 | 72 |
| 16 | 180 |
[6,12,12,30,30,18,36,36,90,90,24,60,48,120,72,180] |