n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 120 |
3 | 11880 |
4 | 1860480 |
5 | 427518000 |
6 | 135970773120 |
7 | 57274321104000 |
8 | 30885807297945600 |
9 | 20759078324729606400 |
10 | 17018214378110225280000 |
11 | 16716468557742686853120000 |
12 | 19383353274717848149493760000 |
13 | 26198415087179810897268887040000 |
14 | 40828604361516687201839617904640000 |
[0,2,120,11880,1860480,427518000,135970773120, 57274321104000,30885807297945600, 20759078324729606400,17018214378110225280000, 16716468557742686853120000, 19383353274717848149493760000, 26198415087179810897268887040000, 40828604361516687201839617904640000] |