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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 12 |
| 5 | 28 |
| 6 | 60 |
| 7 | 91 |
| 8 | 124 |
| 9 | 168 |
| 10 | 360 |
| 11 | 546 |
| 12 | 744 |
| 13 | 1170 |
| 14 | 2418 |
| 15 | 2880 |
| 16 | 4368 |
| 17 | 5952 |
| 18 | 9360 |
| 19 | 19344 |
| 20 | 39312 |
| 21 | 59520 |
| 22 | 99944 |
| 23 | 112320 |
| 24 | 232128 |
| 25 | 471744 |
| 26 | 714240 |
| 27 | 1199328 |
| 28 | 1451520 |
| 29 | 2437344 |
| 30 | 2926080 |
| 31 | 3249792 |
| 32 | 6604416 |
| 33 | 9999360 |
[1,3,7,12,28,60,91,124,168,360,546,744,1170,2418, 2880,4368,5952,9360,19344,39312,59520,99944, 112320,232128,471744,714240,1199328,1451520, 2437344,2926080,3249792,6604416,9999360] |