A129735 - OEIS

A129735 as a simple table

n	a(n)
1	5
2	3
3	7
4	17
5	11
6	31
7	13
8	43
9	127
10	257
11	19
12	73
13	41
14	23
15	89
16	683
17	241
18	2731
19	8191
20	29
21	113
22	151
23	331
24	65537
25	43691
26	131071
27	37
28	109
29	174763
30	524287
31	61681
32	337
33	5419
34	397
35	2113
36	47
37	178481
38	2796203
39	97
40	673
41	251
42	601
43	1801
44	4051
45	53
46	157
47	1613
48	87211
49	262657
50	15790321
51	59
52	233
53	1103
54	2089
55	3033169
56	61
57	1321
58	715827883
59	2147483647

[5,3,7,17,11,31,13,43,127,257,19,73,41,23,89,683, 241,2731,8191,29,113,151,331,65537,43691,131071, 37,109,174763,524287,61681,337,5419,397,2113,47, 178481,2796203,97,673,251,601,1801,4051,53,157, 1613,87211,262657,15790321,59,233,1103,2089, 3033169,61,1321,715827883,2147483647]