A117144 - OEIS

A117144 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	3
7	3
8	4
9	5
10	6
11	6
12	8
13	9
14	10
15	12
16	15
17	16
18	19
19	21
20	25
21	28
22	32
23	34
24	41
25	46
26	51
27	55
28	64
29	70
30	79
31	86
32	97
33	106
34	119
35	129
36	146
37	159
38	175
39	190
40	214
41	232
42	256
43	277
44	306
45	334
46	367
47	394
48	434
49	472
50	515
51	556
52	607
53	654
54	714
55	770
56	836
57	901
58	978
59	1048
60	1140
61	1226
62	1322

[1,1,1,1,2,2,3,3,4,5,6,6,8,9,10,12,15,16,19,21,25, 28,32,34,41,46,51,55,64,70,79,86,97,106,119,129, 146,159,175,190,214,232,256,277,306,334,367,394, 434,472,515,556,607,654,714,770,836,901,978,1048, 1140,1226,1322]