n | a(n) |
---|---|
0 | 1 |
1 | 60 |
2 | 151200 |
3 | 1816214400 |
4 | 60339831552000 |
5 | 4274473667143680000 |
6 | 553761949463615692800000 |
7 | 118528911546113729396736000000 |
8 | 38996486014317601426443730944000000 |
[1,60,151200,1816214400,60339831552000, 4274473667143680000,553761949463615692800000, 118528911546113729396736000000, 38996486014317601426443730944000000] |