A162491 - OEIS

A162491 as a simple table

n	a(n)
0	2
1	5
2	7
3	11
4	19
5	5
6	67
7	131
8	7
9	5
10	13
11	7
12	4099
13	5
14	7
15	32771
16	65539
17	5
18	262147
19	29
20	7
21	5
22	13
23	7
24	1549
25	5
26	7
27	4057
28	268435459
29	5
30	1073741827
31	83
32	7
33	5
34	13
35	7
36	61
37	5
38	7
39	63727
40	19
41	5
42	307
43	11
44	7
45	5
46	13
47	7
48	853
49	5
50	7
51	967
52	373
53	5
54	1422061
55	36028797018963971
56	7
57	5
58	13

[2,5,7,11,19,5,67,131,7,5,13,7,4099,5,7,32771, 65539,5,262147,29,7,5,13,7,1549,5,7,4057, 268435459,5,1073741827,83,7,5,13,7,61,5,7,63727, 19,5,307,11,7,5,13,7,853,5,7,967,373,5,1422061, 36028797018963971,7,5,13]