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| n | a(n) |
|---|---|
| 1 | 720 |
| 2 | 87178291200 |
| 3 | 6402373705728000 |
| 4 | 8222838654177922817725562880000000 |
| 5 | 608281864034267560872252163321295376887552831379210240000000000 |
| 6 | 1124000727777607680000 |
| 7 | 230843697339241380472092742683027581083278564571807941132288000000000000 |
[720,87178291200,6402373705728000, 8222838654177922817725562880000000, 60828186403426756087225216332129537688755283137921\ 0240000000000,1124000727777607680000, 23084369733924138047209274268302758108327856457180\ 7941132288000000000000] |