A246929 - OEIS

A246929 as a simple table

n	a(n)
1	31
2	79
3	137
4	193
5	257
6	317
7	389
8	457
9	523
10	601
11	661
12	743
13	823
14	887
15	977
16	1049
17	1117
18	1213
19	1289
20	1373
21	1453
22	1531
23	1607
24	1693
25	1777
26	1871
27	1951
28	2029
29	2113
30	2213
31	2293
32	2377
33	2447
34	2551
35	2659
36	2713
37	2797
38	2887
39	2971
40	3079
41	3187
42	3271
43	3359
44	3461
45	3539

[31,79,137,193,257,317,389,457,523,601,661,743, 823,887,977,1049,1117,1213,1289,1373,1453,1531, 1607,1693,1777,1871,1951,2029,2113,2213,2293,2377, 2447,2551,2659,2713,2797,2887,2971,3079,3187,3271, 3359,3461,3539]