n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 6 |
4 | 144 |
5 | 600 |
6 | 1992 |
7 | 4592 |
8 | 15616 |
9 | 31788 |
10 | 74840 |
11 | 122210 |
12 | 251184 |
13 | 384826 |
14 | 647696 |
15 | 1085190 |
16 | 1616384 |
17 | 2308872 |
18 | 3449880 |
19 | 4783326 |
20 | 7052400 |
21 | 9253734 |
22 | 12454640 |
23 | 16453096 |
24 | 22180992 |
25 | 28552450 |
26 | 36216544 |
27 | 46089162 |
28 | 58449104 |
29 | 72061346 |
30 | 91140000 |
31 | 109813780 |
32 | 135448576 |
[0,0,6,144,600,1992,4592,15616,31788,74840,122210, 251184,384826,647696,1085190,1616384,2308872, 3449880,4783326,7052400,9253734,12454640,16453096, 22180992,28552450,36216544,46089162,58449104, 72061346,91140000,109813780,135448576] |