A031157 - OEIS

A031157 as a simple table

n	a(n)
1	3
2	7
3	13
4	31
5	37
6	43
7	67
8	73
9	79
10	127
11	151
12	163
13	193
14	211
15	223
16	241
17	283
18	307
19	331
20	349
21	367
22	409
23	421
24	433
25	463
26	487
27	541
28	577
29	601
30	613
31	619
32	631
33	643
34	673
35	727
36	739
37	769
38	787
39	823
40	883
41	937
42	991
43	997
44	1009
45	1021
46	1039
47	1087
48	1093
49	1117
50	1123

[3,7,13,31,37,43,67,73,79,127,151,163,193,211,223, 241,283,307,331,349,367,409,421,433,463,487,541, 577,601,613,619,631,643,673,727,739,769,787,823, 883,937,991,997,1009,1021,1039,1087,1093,1117, 1123]