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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 12 |
| 5 | 24 |
| 6 | 48 |
| 7 | 144 |
| 8 | 720 |
| 9 | 1440 |
| 10 | 10080 |
| 11 | 30240 |
| 12 | 60480 |
| 13 | 302400 |
| 14 | 3326400 |
| 15 | 6652800 |
| 16 | 19958400 |
| 17 | 259459200 |
| 18 | 518918400 |
| 19 | 3632428800 |
| 20 | 61751289600 |
| 21 | 1173274502400 |
| 22 | 3519823507200 |
| 23 | 17599117536000 |
| 24 | 35198235072000 |
| 25 | 809559406656000 |
| 26 | 1619118813312000 |
| 27 | 46954445586048000 |
[1,2,4,12,24,48,144,720,1440,10080,30240,60480, 302400,3326400,6652800,19958400,259459200, 518918400,3632428800,61751289600,1173274502400, 3519823507200,17599117536000,35198235072000, 809559406656000,1619118813312000, 46954445586048000] |