A023746 - OEIS

A023746 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	7
8	10
9	11
10	15
11	21
12	22
13	23
14	26
15	27
16	31
17	42
18	43
19	47
20	63
21	85
22	86
23	87
24	90
25	91
26	95
27	106
28	107
29	111
30	127
31	170
32	171
33	175
34	191
35	255
36	341
37	342
38	343
39	346
40	347
41	351
42	362
43	363
44	367
45	383
46	426
47	427
48	431
49	447
50	511
51	682
52	683
53	687
54	703
55	767
56	1023
57	1365
58	1366

[0,1,2,3,5,6,7,10,11,15,21,22,23,26,27,31,42,43, 47,63,85,86,87,90,91,95,106,107,111,127,170,171, 175,191,255,341,342,343,346,347,351,362,363,367, 383,426,427,431,447,511,682,683,687,703,767,1023, 1365,1366]