n | a(n) |
---|---|
1 | 0 |
2 | 12 |
3 | 180 |
4 | 5040 |
5 | 151200 |
6 | 6029100 |
7 | 276215940 |
8 | 14983768800 |
9 | 919653134400 |
10 | 63694663332300 |
11 | 4888759865289300 |
12 | 412920835111184400 |
13 | 38015644799992860000 |
14 | 3791220682538296507500 |
15 | 407033985027273005902500 |
16 | 46814497435454120812440000 |
17 | 5742194963898519585098640000 |
18 | 748255970051952172869045487500 |
[0,12,180,5040,151200,6029100,276215940, 14983768800,919653134400,63694663332300, 4888759865289300,412920835111184400, 38015644799992860000,3791220682538296507500, 407033985027273005902500, 46814497435454120812440000, 5742194963898519585098640000, 748255970051952172869045487500] |