n | a(n) |
---|---|
1 | 1 |
2 | 15 |
3 | 1200 |
4 | 288000 |
5 | 179712000 |
6 | 215654400000 |
7 | 517570560000000 |
8 | 1987470950400000000 |
9 | 12878811758592000000000 |
10 | 120545678060421120000000000 |
11 | 1764788726804565196800000000000 |
12 | 33883943554647651778560000000000000 |
13 | 967725427920736934795673600000000000000 |
[1,15,1200,288000,179712000,215654400000, 517570560000000,1987470950400000000, 12878811758592000000000, 120545678060421120000000000, 1764788726804565196800000000000, 33883943554647651778560000000000000, 967725427920736934795673600000000000000] |