A087521 - OEIS

A087521 as a simple table

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	23
7	29
8	31
9	47
10	59
11	71
12	127
13	167
14	179
15	191
16	223
17	239
18	359
19	383
20	389
21	419
22	431
23	479
24	719
25	839
26	863
27	971
28	1151
29	1259
30	1279
31	1439
32	1511
33	2111
34	2309
35	2591
36	2687
37	2699
38	2879
39	3023
40	3119
41	3359
42	3583
43	3779
44	5039
45	5119
46	5399
47	6047
48	6143
49	6299
50	6719

[2,3,5,7,11,23,29,31,47,59,71,127,167,179,191,223, 239,359,383,389,419,431,479,719,839,863,971,1151, 1259,1279,1439,1511,2111,2309,2591,2687,2699,2879, 3023,3119,3359,3583,3779,5039,5119,5399,6047,6143, 6299,6719]