A142792 - OEIS

A142792 as a simple table

n	a(n)
1	31
2	151
3	211
4	271
5	331
6	571
7	631
8	691
9	751
10	811
11	991
12	1051
13	1171
14	1231
15	1291
16	1471
17	1531
18	1831
19	1951
20	2011
21	2131
22	2251
23	2311
24	2371
25	2551
26	2671
27	2731
28	2791
29	2851
30	2971
31	3271
32	3331
33	3391
34	3511
35	3571
36	3631
37	3691
38	3931
39	4051
40	4111
41	4231
42	4591
43	4651
44	4831
45	4951

[31,151,211,271,331,571,631,691,751,811,991,1051, 1171,1231,1291,1471,1531,1831,1951,2011,2131,2251, 2311,2371,2551,2671,2731,2791,2851,2971,3271,3331, 3391,3511,3571,3631,3691,3931,4051,4111,4231,4591, 4651,4831,4951]