n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 240 |
4 | 16800 |
5 | 4233600 |
6 | 3911846400 |
7 | 13425456844800 |
8 | 172785629592576000 |
9 | 8400837310791045120000 |
10 | 1552105098192510332190720000 |
11 | 1094904603628138948657963991040000 |
12 | 2960792853328653706847125274154762240000 |
13 | 30794022150329995743434211126374020153344000000 |
[1,2,12,240,16800,4233600,3911846400, 13425456844800,172785629592576000, 8400837310791045120000, 1552105098192510332190720000, 1094904603628138948657963991040000, 2960792853328653706847125274154762240000, 30794022150329995743434211126374020153344000000] |