A163809 - OEIS

A163809 as a simple table

n	a(n)
1	1
2	2
3	5
4	4
5	5
6	10
7	21
8	8
9	9
10	10
11	21
12	20
13	21
14	42
15	85
16	16
17	17
18	18
19	37
20	20
21	21
22	42
23	85
24	40
25	41
26	42
27	85
28	84
29	85
30	170
31	341
32	32
33	33
34	34
35	69
36	36
37	37
38	74
39	149
40	40
41	41
42	42
43	85
44	84
45	85
46	170
47	341
48	80
49	81
50	82
51	165
52	84
53	85
54	170
55	341
56	168
57	169
58	170
59	341
60	340
61	341
62	682
63	1365
64	64
65	65
66	66
67	133

[1,2,5,4,5,10,21,8,9,10,21,20,21,42,85,16,17,18, 37,20,21,42,85,40,41,42,85,84,85,170,341,32,33,34, 69,36,37,74,149,40,41,42,85,84,85,170,341,80,81, 82,165,84,85,170,341,168,169,170,341,340,341,682, 1365,64,65,66,133]