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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 12 |
| 5 | 60 |
| 6 | 120 |
| 7 | 840 |
| 8 | 840 |
| 9 | 2520 |
| 10 | 2520 |
| 11 | 27720 |
| 12 | 55440 |
| 13 | 720720 |
| 14 | 720720 |
| 15 | 1081080 |
| 16 | 2162160 |
| 17 | 36756720 |
| 18 | 36756720 |
| 19 | 698377680 |
| 20 | 698377680 |
| 21 | 698377680 |
| 22 | 698377680 |
| 23 | 16062686640 |
| 24 | 48188059920 |
| 25 | 160626866400 |
| 26 | 160626866400 |
| 27 | 160626866400 |
[1,2,6,12,60,120,840,840,2520,2520,27720,55440, 720720,720720,1081080,2162160,36756720,36756720, 698377680,698377680,698377680,698377680, 16062686640,48188059920,160626866400,160626866400, 160626866400] |