A131406 - OEIS

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A131406 as a simple table

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

[1,2,1,1,2,1,2,1,2,1,1,2,1,2,1,2,1,2,1,2,1,1,2,1, 2,1,2,1,2,1,2,1,2,1,2,1,1,2,1,2,1,2,1,2,1,2,1,2,1, 2,1,2,1,2,1]