A169991 - OEIS

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A169991 as a simple table

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	2
12	3
13	3
14	3
15	4
16	5
17	4
18	4
19	5
20	5
21	6
22	5
23	6
24	7
25	7
26	6
27	7
28	8
29	7
30	7
31	7
32	8
33	7
34	7
35	7
36	8
37	7
38	6
39	7
40	7
41	6
42	5
43	6
44	5
45	5
46	4
47	4
48	5
49	4
50	3
51	3
52	3
53	2
54	2
55	2
56	2
57	1
58	1
59	1
60	1
61	1
62	0
63	1
64	1

[1,1,0,1,1,1,1,1,2,2,2,2,3,3,3,4,5,4,4,5,5,6,5,6, 7,7,6,7,8,7,7,7,8,7,7,7,8,7,6,7,7,6,5,6,5,5,4,4,5, 4,3,3,3,2,2,2,2,1,1,1,1,1,0,1,1]