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| n | a(n) |
|---|---|
| 1 | 23760 |
| 2 | 241040067840 |
| 3 | 927160196029562880 |
| 4 | 2606734186332708640980992 |
| 5 | 10726454782976061347559450869760 |
| 6 | 39254958066409241851311669665794621440 |
| 7 | 146612881747544901468330072567145716462387200 |
[23760,241040067840,927160196029562880, 2606734186332708640980992, 10726454782976061347559450869760, 39254958066409241851311669665794621440, 146612881747544901468330072567145716462387200] |