A023268 - OEIS

A023268 as a simple table

n	a(n)
1	11
2	13
3	43
4	47
5	67
6	83
7	89
8	103
9	109
10	193
11	197
12	251
13	281
14	293
15	383
16	397
17	449
18	461
19	601
20	617
21	641
22	733
23	757
24	823
25	839
26	853
27	887
28	937
29	967
30	1013
31	1069
32	1091
33	1447
34	1489
35	1733
36	1741
37	1789
38	1931
39	2111
40	2237
41	2239
42	2251
43	2339
44	2521
45	2539
46	2647
47	2671
48	2693
49	2797

[11,13,43,47,67,83,89,103,109,193,197,251,281,293, 383,397,449,461,601,617,641,733,757,823,839,853, 887,937,967,1013,1069,1091,1447,1489,1733,1741, 1789,1931,2111,2237,2239,2251,2339,2521,2539,2647, 2671,2693,2797]