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| n | a(n) |
|---|---|
| 1 | 902880 |
| 2 | 1534680 |
| 3 | 361674720 |
| 4 | 767685600 |
| 5 | 4530770640 |
| 6 | 4941414720 |
| 7 | 5405788800 |
| 8 | 5517818880 |
| 9 | 16993944000 |
| 10 | 20429240832 |
| 11 | 94820077440 |
[902880,1534680,361674720,767685600,4530770640, 4941414720,5405788800,5517818880,16993944000, 20429240832,94820077440] |