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| n | a(n) |
|---|---|
| 1 | 20160 |
| 2 | 6065280 |
| 3 | 987033600 |
| 4 | 7254000000 |
| 5 | 2317591180800 |
| 6 | 34558531338240 |
| 7 | 50759843097600 |
| 8 | 2069665112592000 |
| 9 | 12714519233969280 |
| 10 | 1148120010326016000 |
| 11 | 712975930219192320 |
| 12 | 7568375355962524800 |
[20160,6065280,987033600,7254000000,2317591180800, 34558531338240,50759843097600,2069665112592000, 12714519233969280,1148120010326016000, 712975930219192320,7568375355962524800] |