A168577 - OEIS

A168577 as a simple table

n	a(n)
2	3
3	6
4	4
5	10
6	10
7	5
8	15
9	20
10	15
11	6
12	21
13	35
14	35
15	21
16	7
17	28
18	56
19	70
20	56
21	28
22	8
23	36
24	84
25	126
26	126
27	84
28	36
29	9
30	45
31	120
32	210
33	252
34	210
35	120
36	45
37	10
38	55
39	165
40	330
41	462
42	462
43	330
44	165
45	55
46	11
47	66
48	220
49	495
50	792
51	924
52	792
53	495
54	220
55	66
56	12
57	78
58	286
59	715
60	1287
61	1716
62	1716
63	1287

[3,6,4,10,10,5,15,20,15,6,21,35,35,21,7,28,56,70, 56,28,8,36,84,126,126,84,36,9,45,120,210,252,210, 120,45,10,55,165,330,462,462,330,165,55,11,66,220, 495,792,924,792,495,220,66,12,78,286,715,1287, 1716,1716,1287]