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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 12 |
| 4 | 60 |
| 5 | 420 |
| 6 | 660 |
| 7 | 4620 |
| 8 | 8580 |
| 9 | 9240 |
| 10 | 60060 |
| 11 | 78540 |
| 12 | 106260 |
| 13 | 157080 |
| 14 | 1021020 |
| 15 | 1381380 |
| 16 | 1492260 |
| 17 | 1806420 |
| 18 | 2762760 |
| 19 | 2984520 |
| 20 | 23483460 |
| 21 | 34321980 |
| 22 | 38798760 |
| 23 | 46966920 |
| 24 | 68643960 |
| 25 | 681020340 |
| 26 | 892371480 |
| 27 | 1848483780 |
| 28 | 1990674840 |
| 29 | 2127962760 |
| 30 | 3226266120 |
[1,3,12,60,420,660,4620,8580,9240,60060,78540, 106260,157080,1021020,1381380,1492260,1806420, 2762760,2984520,23483460,34321980,38798760, 46966920,68643960,681020340,892371480,1848483780, 1990674840,2127962760,3226266120] |