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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 8 |
| 4 | 12 |
| 5 | 14 |
| 6 | 18 |
| 7 | 20 |
| 8 | 24 |
| 9 | 30 |
| 10 | 32 |
| 11 | 38 |
| 12 | 42 |
| 13 | 48 |
| 14 | 54 |
| 15 | 60 |
| 16 | 72 |
| 17 | 80 |
| 18 | 84 |
| 19 | 90 |
| 20 | 108 |
| 21 | 110 |
| 22 | 132 |
| 23 | 138 |
| 24 | 140 |
| 25 | 150 |
| 26 | 180 |
[4,6,8,12,14,18,20,24,30,32,38,42,48,54,60,72,80, 84,90,108,110,132,138,140,150,180] |