A305428 - OEIS

A305428 as a simple table

n	a(n)
1	0
2	1
3	3
4	2
5	5
6	6
7	7
8	4
9	13
10	10
11	15
12	12
13	31
14	14
15	9
16	8
17	17
18	26
19	63
20	20
21	11
22	30
23	61
24	24
25	127
26	62
27	25
28	28
29	29
30	18
31	255
32	16
33	509
34	34
35	59
36	52
37	511
38	126
39	57
40	40
41	1023
42	22
43	253
44	60
45	49
46	122
47	2047
48	48
49	27
50	254
51	33
52	124
53	125
54	50
55	4095
56	56
57	121
58	58
59	8191
60	36
61	16383
62	510
63	21
64	32
65	41
66	1018
67	32767
68	68
69	23
70	118
71	32765
72	104
73	65535
74	1022
75	241
76	252
77	16381
78	114
79	251
80	80
81	47

[0,1,3,2,5,6,7,4,13,10,15,12,31,14,9,8,17,26,63, 20,11,30,61,24,127,62,25,28,29,18,255,16,509,34, 59,52,511,126,57,40,1023,22,253,60,49,122,2047,48, 27,254,33,124,125,50,4095,56,121,58,8191,36,16383, 510,21,32,41,1018,32767,68,23,118,32765,104,65535, 1022,241,252,16381,114,251,80,47]