A262840 - OEIS

A262840 as a simple table

n	a(n)
1	2
2	3
3	5
4	13
5	17
6	23
7	41
8	43
9	53
10	71
11	79
12	101
13	137
14	157
15	181
16	191
17	239
18	281
19	379
20	463
21	743
22	839
23	863
24	967
25	1151
26	1171
27	1303
28	1367
29	1663
30	1721
31	2083
32	2251
33	2297
34	2351
35	2621
36	2659
37	2957
38	2999
39	3257
40	3343
41	3373
42	3511
43	3607
44	3767
45	3863
46	3877
47	3907
48	4217
49	4447

[2,3,5,13,17,23,41,43,53,71,79,101,137,157,181, 191,239,281,379,463,743,839,863,967,1151,1171, 1303,1367,1663,1721,2083,2251,2297,2351,2621,2659, 2957,2999,3257,3343,3373,3511,3607,3767,3863,3877, 3907,4217,4447]