A129672 - OEIS

A129672 as a simple table

n	a(n)
1	2
2	3
3	5
4	13
5	17
6	19
7	23
8	31
9	79
10	83
11	103
12	107
13	139
14	191
15	479
16	499
17	503
18	619
19	643
20	647
21	839
22	1151
23	2879
24	2999
25	3019
26	3023
27	3719
28	3863
29	5039
30	6907
31	6911
32	18119
33	18143
34	41443
35	41467
36	108863

[2,3,5,13,17,19,23,31,79,83,103,107,139,191,479, 499,503,619,643,647,839,1151,2879,2999,3019,3023, 3719,3863,5039,6907,6911,18119,18143,41443,41467, 108863]