A069680 - OEIS

A069680 as a simple table

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	19
9	23
10	29
11	31
12	37
13	41
14	43
15	47
16	53
17	59
18	61
19	67
20	71
21	73
22	79
23	83
24	89
25	97
26	151
27	157
28	251
29	257
30	353
31	359
32	457
33	557
34	653
35	659
36	751
37	757
38	853
39	857
40	859
41	953
42	1553
43	1559
44	2551
45	2557
46	3557
47	3559
48	5557
49	6551
50	6553
51	7559
52	9551
53	15551
54	15559
55	45553

[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59, 61,67,71,73,79,83,89,97,151,157,251,257,353,359, 457,557,653,659,751,757,853,857,859,953,1553,1559, 2551,2557,3557,3559,5557,6551,6553,7559,9551, 15551,15559,45553]