A035372 - OEIS

A035372 as a simple table

n	a(n)
1	1
2	1
3	2
4	2
5	2
6	4
7	4
8	5
9	7
10	7
11	9
12	12
13	13
14	16
15	19
16	22
17	26
18	31
19	36
20	41
21	48
22	56
23	63
24	75
25	85
26	96
27	112
28	126
29	143
30	165
31	184
32	210
33	238
34	267
35	302
36	340
37	381
38	428
39	480
40	538
41	599
42	672
43	748
44	832
45	930
46	1031
47	1144
48	1275
49	1408
50	1562
51	1730
52	1910
53	2111
54	2332
55	2571
56	2834
57	3121

[1,1,2,2,2,4,4,5,7,7,9,12,13,16,19,22,26,31,36,41, 48,56,63,75,85,96,112,126,143,165,184,210,238,267, 302,340,381,428,480,538,599,672,748,832,930,1031, 1144,1275,1408,1562,1730,1910,2111,2332,2571,2834, 3121]