A058886 - OEIS

A058886 as a simple table

n	a(n)
2	2
3	1
4	2
5	3
6	4
7	5
8	5
9	7
10	9
11	11
12	12
13	15
14	18
15	20
16	23
17	28
18	33
19	37
20	42
21	48
22	56
23	63
24	70
25	80
26	92
27	102
28	114
29	129
30	145
31	161
32	178
33	199
34	223
35	246
36	271
37	302
38	335
39	368
40	404
41	447
42	493
43	540
44	591
45	649
46	713
47	779
48	848
49	929
50	1017
51	1106
52	1203
53	1312
54	1429
55	1551
56	1682
57	1828
58	1986

[2,1,2,3,4,5,5,7,9,11,12,15,18,20,23,28,33,37,42, 48,56,63,70,80,92,102,114,129,145,161,178,199,223, 246,271,302,335,368,404,447,493,540,591,649,713, 779,848,929,1017,1106,1203,1312,1429,1551,1682, 1828,1986]