A059912 - OEIS

A059912 as a simple table

n	a(n)
1	1
2	3
3	7
4	5
5	15
6	31
7	9
8	21
9	63
10	127
11	17
12	51
13	85
14	255
15	73
16	511
17	11
18	33
19	93
20	341
21	1023
22	23
23	89
24	2047
25	13
26	35
27	39
28	45
29	65
30	91
31	105
32	117
33	195
34	273
35	315
36	455
37	585
38	819
39	1365
40	4095
41	8191
42	43
43	129
44	381
45	5461
46	16383
47	151
48	217
49	1057
50	4681
51	32767
52	257
53	771
54	1285
55	3855

[1,3,7,5,15,31,9,21,63,127,17,51,85,255,73,511,11, 33,93,341,1023,23,89,2047,13,35,39,45,65,91,105, 117,195,273,315,455,585,819,1365,4095,8191,43,129, 381,5461,16383,151,217,1057,4681,32767,257,771, 1285,3855]