n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 24 |
3 | 2880 |
4 | 40320 |
5 | 7257600 |
6 | 479001600 |
7 | 697426329600 |
8 | 20922789888000 |
9 | 261321375744000 |
10 | 221172909834240000 |
11 | 4496002911110430720000 |
12 | 620448401733239439360000 |
13 | 806582922253211271168000000 |
14 | 304888344611713860501504000000 |
15 | 4244045756995056938180935680000000 |
[1,4,24,2880,40320,7257600,479001600,697426329600, 20922789888000,261321375744000,221172909834240000, 4496002911110430720000,620448401733239439360000, 806582922253211271168000000, 304888344611713860501504000000, 4244045756995056938180935680000000] |