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| n | a(n) |
|---|---|
| 3 | 720 |
| 4 | 13824 |
| 5 | 383000 |
| 6 | 14804640 |
| 7 | 764340024 |
| 8 | 50913153536 |
| 9 | 4256161751448 |
| 10 | 436618291524000 |
| 11 | 53955264479804600 |
| 12 | 7908071556041000064 |
| 13 | 1356709951589099693976 |
| 14 | 269380212536429979520928 |
| 15 | 61297096735652845698099000 |
| 16 | 15847986814197933588682229760 |
| 17 | 4620315237160994963528810238104 |
[720,13824,383000,14804640,764340024,50913153536, 4256161751448,436618291524000,53955264479804600, 7908071556041000064,1356709951589099693976, 269380212536429979520928, 61297096735652845698099000, 15847986814197933588682229760, 4620315237160994963528810238104] |