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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 3 |
| 5 | 12 |
| 6 | 30 |
| 7 | 60 |
| 8 | 420 |
| 9 | 840 |
| 10 | 1260 |
| 11 | 630 |
| 12 | 27720 |
| 13 | 4620 |
| 14 | 60060 |
| 15 | 30030 |
| 16 | 120120 |
| 17 | 240240 |
| 18 | 2042040 |
| 19 | 3063060 |
| 20 | 232792560 |
| 21 | 58198140 |
| 22 | 38798760 |
| 23 | 19399380 |
| 24 | 446185740 |
| 25 | 892371480 |
| 26 | 2230928700 |
| 27 | 4461857400 |
| 28 | 40156716600 |
| 29 | 20078358300 |
| 30 | 582272390700 |
[1,2,4,3,12,30,60,420,840,1260,630,27720,4620, 60060,30030,120120,240240,2042040,3063060, 232792560,58198140,38798760,19399380,446185740, 892371480,2230928700,4461857400,40156716600, 20078358300,582272390700] |