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| n | a(n) |
|---|---|
| 1 | 60 |
| 2 | 540 |
| 3 | 2160 |
| 4 | 6000 |
| 5 | 13500 |
| 6 | 26460 |
| 7 | 47040 |
| 8 | 77760 |
| 9 | 121500 |
| 10 | 181500 |
| 11 | 261360 |
| 12 | 365040 |
| 13 | 496860 |
| 14 | 661500 |
| 15 | 864000 |
| 16 | 1109760 |
| 17 | 1404540 |
| 18 | 1754460 |
| 19 | 2166000 |
| 20 | 2646000 |
| 21 | 3201660 |
| 22 | 3840540 |
| 23 | 4570560 |
| 24 | 5400000 |
| 25 | 6337500 |
| 26 | 7392060 |
| 27 | 8573040 |
| 28 | 9890160 |
| 29 | 11353500 |
| 30 | 12973500 |
| 31 | 14760960 |
[60,540,2160,6000,13500,26460,47040,77760,121500, 181500,261360,365040,496860,661500,864000,1109760, 1404540,1754460,2166000,2646000,3201660,3840540, 4570560,5400000,6337500,7392060,8573040,9890160, 11353500,12973500,14760960] |