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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 12 |
| 5 | 28 |
| 6 | 84 |
| 7 | 120 |
| 8 | 234 |
| 9 | 270 |
| 10 | 496 |
| 11 | 672 |
| 12 | 1080 |
| 13 | 1488 |
| 14 | 1638 |
| 15 | 6048 |
| 16 | 6552 |
| 17 | 8128 |
| 18 | 24384 |
| 19 | 30240 |
| 20 | 32760 |
| 21 | 35640 |
| 22 | 199584 |
| 23 | 435708 |
| 24 | 523776 |
| 25 | 2142720 |
| 26 | 2178540 |
| 27 | 4713984 |
| 28 | 12999168 |
| 29 | 18506880 |
| 30 | 23569920 |
| 31 | 33550336 |
| 32 | 36197280 |
| 33 | 45532800 |
[1,3,6,12,28,84,120,234,270,496,672,1080,1488, 1638,6048,6552,8128,24384,30240,32760,35640, 199584,435708,523776,2142720,2178540,4713984, 12999168,18506880,23569920,33550336,36197280, 45532800] |