n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 72 |
4 | 720 |
5 | 7200 |
6 | 100800 |
7 | 1411200 |
8 | 25401600 |
9 | 457228800 |
10 | 10059033600 |
11 | 221298739200 |
12 | 5753767219200 |
13 | 149597947699200 |
14 | 4487938430976000 |
15 | 134638152929280000 |
16 | 4577697199595520000 |
17 | 155641704786247680000 |
[1,2,12,72,720,7200,100800,1411200,25401600, 457228800,10059033600,221298739200,5753767219200, 149597947699200,4487938430976000, 134638152929280000,4577697199595520000, 155641704786247680000] |