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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 84 |
| 3 | 4368 |
| 4 | 480700 |
| 5 | 600805296 |
| 6 | 262596783764 |
| 7 | 1379370175283520 |
| 8 | 1514334254464231200 |
| 9 | 24865270306254660391200 |
| 10 | 7359958875023243471254188840 |
| 11 | 30252210715675198558211547346560 |
| 12 | 27736893389807828057568911670132340158 |
| 13 | 3170935664621755536830934876837287039957088 |
[6,84,4368,480700,600805296,262596783764, 1379370175283520,1514334254464231200, 24865270306254660391200, 7359958875023243471254188840, 30252210715675198558211547346560, 27736893389807828057568911670132340158, 3170935664621755536830934876837287039957088] |