login

A272201 as a simple table

na(n)
17
231
337
467
573
679
7139
8151
9199
10211
11223
12229
13271
14307
15313
16337
17367
18397
19421
20439
21457
22541
23547
24571
25577
26613
27643
28709
29739
30751
31823
32829
33853
34877
35907
36919
37997

[7,31,37,67,73,79,139,151,199,211,223,229,271,307,
 313,337,367,397,421,439,457,541,547,571,577,613,
 643,709,739,751,823,829,853,877,907,919,997]