A391567 - OEIS

A391567 as a simple table

n	a(n)
1	1
2	1
3	3
4	1
5	7
6	3
7	7
8	1
9	15
10	7
11	3
12	3
13	5
14	7
15	15
16	1
17	31
18	15
19	3
20	7
21	5
22	3
23	45
24	3
25	31
26	5
27	2295
28	7
29	31
30	15
31	31
32	1
33	63
34	31
35	3
36	15
37	45
38	3
39	5
40	7
41	7
42	5
43	5
44	3
45	5
46	45
47	5
48	3
49	21
50	31
51	17391
52	5
53	63
54	2295
55	17391
56	7
57	9
58	31
59	1079
60	15
61	21
62	31
63	63
64	1
65	127
66	63
67	3
68	31
69	7
70	3
71	7
72	15
73	9
74	45
75	55269
76	3
77	3
78	5
79	3
80	7
81	21
82	7
83	3
84	5
85	765
86	5
87	11
88	3

[1,1,3,1,7,3,7,1,15,7,3,3,5,7,15,1,31,15,3,7,5,3, 45,3,31,5,2295,7,31,15,31,1,63,31,3,15,45,3,5,7,7, 5,5,3,5,45,5,3,21,31,17391,5,63,2295,17391,7,9,31, 1079,15,21,31,63,1,127,63,3,31,7,3,7,15,9,45, 55269,3,3,5,3,7,21,7,3,5,765,5,11,3]