A115231 - OEIS

A115231 as a simple table

n	a(n)
1	2
2	3
3	149
4	331
5	373
6	509
7	701
8	757
9	809
10	877
11	907
12	997
13	1019
14	1087
15	1259
16	1549
17	1597
18	1619
19	1657
20	1759
21	1777
22	1783
23	1867
24	1973
25	2293
26	2377
27	2503
28	2579
29	2683
30	2789
31	2843
32	2879
33	2909
34	2999
35	3119
36	3163
37	3181
38	3187
39	3299
40	3343
41	3433
42	3539
43	3643
44	3697
45	3739
46	3779

[2,3,149,331,373,509,701,757,809,877,907,997,1019, 1087,1259,1549,1597,1619,1657,1759,1777,1783,1867, 1973,2293,2377,2503,2579,2683,2789,2843,2879,2909, 2999,3119,3163,3181,3187,3299,3343,3433,3539,3643, 3697,3739,3779]