n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 12 |
4 | 60 |
5 | 420 |
6 | 2520 |
7 | 27720 |
8 | 720720 |
9 | 720720 |
10 | 24504480 |
11 | 465585120 |
12 | 2793510720 |
13 | 64250746560 |
14 | 642507465600 |
15 | 1927522396800 |
16 | 111796299014400 |
17 | 3465685269446400 |
18 | 20794111616678400 |
19 | 727793906583744000 |
[1,4,12,60,420,2520,27720,720720,720720,24504480, 465585120,2793510720,64250746560,642507465600, 1927522396800,111796299014400,3465685269446400, 20794111616678400,727793906583744000] |