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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 10 |
| 7 | 12 |
| 8 | 84 |
| 9 | 96 |
| 10 | 108 |
| 11 | 120 |
| 12 | 1320 |
| 13 | 1440 |
| 14 | 18720 |
| 15 | 20160 |
| 16 | 151200 |
| 17 | 483840 |
| 18 | 1028160 |
| 19 | 1088640 |
| 20 | 2298240 |
| 21 | 2419200 |
| 22 | 50803200 |
| 23 | 159667200 |
| 24 | 1836172800 |
| 25 | 1916006400 |
| 26 | 11975040000 |
| 27 | 12454041600 |
| 28 | 336259123200 |
| 29 | 348713164800 |
[1,1,2,3,4,10,12,84,96,108,120,1320,1440,18720, 20160,151200,483840,1028160,1088640,2298240, 2419200,50803200,159667200,1836172800,1916006400, 11975040000,12454041600,336259123200,348713164800] |