n | a(n) |
---|---|
1 | 2 |
2 | 12 |
3 | 720 |
4 | 30240 |
5 | 1209600 |
6 | 47900160 |
7 | 1307674368000 |
8 | 74724249600 |
9 | 10670622842880000 |
10 | 5109094217170944000 |
11 | 802857662698291200000 |
12 | 14101100039391805440000 |
13 | 1693824136731743669452800000 |
[2,12,720,30240,1209600,47900160,1307674368000, 74724249600,10670622842880000,5109094217170944000, 802857662698291200000,14101100039391805440000, 1693824136731743669452800000] |