A139402 - OEIS

A139402 as a simple table

n	a(n)
1	2
2	5
3	17
4	71
5	101
6	107
7	131
8	491
9	677
10	761
11	821
12	1307
13	1361
14	1367
15	1667
16	2081
17	2207
18	2837
19	3461
20	3467
21	3761
22	3767
23	4007
24	5087
25	5147
26	5231
27	5381
28	5927
29	6701
30	6737
31	6917
32	6977
33	8447
34	8741
35	8807
36	9011
37	9341
38	9677
39	9767

[2,5,17,71,101,107,131,491,677,761,821,1307,1361, 1367,1667,2081,2207,2837,3461,3467,3761,3767,4007, 5087,5147,5231,5381,5927,6701,6737,6917,6977,8447, 8741,8807,9011,9341,9677,9767]