login

A191056 as a simple table

na(n)
15
27
311
413
517
619
729
843
967
1071
1179
1289
1397
14103
15107
16109
17139
18163
19179
20181
21191
22211
23227
24229
25239
26241
27263
28271
29293
30317
31337
32349
33353
34373
35383
36389
37401
38419
39421
40431
41439
42443
43457
44461
45467
46479
47487
48499
49509
50521
51547
52557
53563
54587
55601

[5,7,11,13,17,19,29,43,67,71,79,89,97,103,107,109,
 139,163,179,181,191,211,227,229,239,241,263,271,
 293,317,337,349,353,373,383,389,401,419,421,431,
 439,443,457,461,467,479,487,499,509,521,547,557,
 563,587,601]