A075780 - OEIS

A075780 as a simple table

n	a(n)
2	0
3	3
4	3
5	12
6	14
7	12
8	30
9	45
10	45
11	30
12	60
13	114
14	138
15	114
16	60
17	105
18	245
19	357
20	357
21	245
22	105
23	168
24	468
25	808
26	960
27	808
28	468
29	168
30	252
31	819
32	1647
33	2286
34	2286
35	1647
36	819
37	252
38	360
39	1340
40	3090
41	4935
42	5740
43	4935
44	3090
45	1340
46	360
47	495
48	2079
49	5423
50	9834
51	13090
52	13090
53	9834
54	5423

[0,3,3,12,14,12,30,45,45,30,60,114,138,114,60,105, 245,357,357,245,105,168,468,808,960,808,468,168, 252,819,1647,2286,2286,1647,819,252,360,1340,3090, 4935,5740,4935,3090,1340,360,495,2079,5423,9834, 13090,13090,9834,5423]