n | a(n) |
---|---|
2 | 4 |
3 | 2 |
4 | 16 |
5 | 44 |
6 | 256 |
7 | 768 |
8 | 5184 |
9 | 25344 |
10 | 186624 |
11 | 996480 |
12 | 8294400 |
13 | 57888000 |
14 | 530841600 |
15 | 4006195200 |
16 | 40642560000 |
17 | 367408742400 |
18 | 4064256000000 |
19 | 39358255104000 |
20 | 474054819840000 |
21 | 5254107586560000 |
22 | 68263894056960000 |
23 | 804207665479680000 |
24 | 11242684107325440000 |
[4,2,16,44,256,768,5184,25344,186624,996480, 8294400,57888000,530841600,4006195200,40642560000, 367408742400,4064256000000,39358255104000, 474054819840000,5254107586560000, 68263894056960000,804207665479680000, 11242684107325440000] |