A056815 - OEIS

A056815 as a simple table

n	a(n)
1	3
2	7
3	17
4	23
5	113
6	127
7	137
8	193
9	199
10	223
11	233
12	271
13	311
14	313
15	331
16	359
17	367
18	373
19	431
20	433
21	439
22	463
23	479
24	499
25	503
26	523
27	587
28	607
29	641
30	677
31	691
32	733
33	757
34	773
35	797
36	809
37	821
38	823
39	829
40	853
41	919
42	997
43	1009
44	1069
45	1123
46	1129
47	1171
48	1181
49	1187
50	1223
51	1277

[3,7,17,23,113,127,137,193,199,223,233,271,311, 313,331,359,367,373,431,433,439,463,479,499,503, 523,587,607,641,677,691,733,757,773,797,809,821, 823,829,853,919,997,1009,1069,1123,1129,1171,1181, 1187,1223,1277]