A143209 - OEIS

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A143209 as a simple table

n	a(n)
1	1
2	-1
3	1
4	1
5	2
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	2
14	2
15	1
16	1
17	2
18	2
19	2
20	2
21	1
22	1
23	3
24	3
25	2
26	3
27	3
28	1
29	1
30	2
31	2
32	2
33	2
34	2
35	2
36	1
37	1
38	4
39	6
40	4
41	2
42	4
43	6
44	4
45	1
46	1
47	3
48	3
49	2
50	3
51	3
52	2
53	3
54	3
55	1
56	1
57	5
58	10
59	10
60	5
61	2
62	5
63	10
64	10
65	5
66	1

[1,-1,1,1,2,1,1,2,2,1,1,2,2,2,1,1,2,2,2,2,1,1,3,3, 2,3,3,1,1,2,2,2,2,2,2,1,1,4,6,4,2,4,6,4,1,1,3,3,2, 3,3,2,3,3,1,1,5,10,10,5,2,5,10,10,5,1]