login

A031916 as a simple table

na(n)
13
231
371
4109
5163
6211
7263
8313
9373
10431
11479
12547
13601
14653
15719
16773
17839
18907
19971
201031
211091
221153
231223
241289
251361
261433
271487
281553
291609
301669
311747
321823
331889
341979
352029
362099
372161
382251
392311
402381
412441
422539
432617

[3,31,71,109,163,211,263,313,373,431,479,547,601,
 653,719,773,839,907,971,1031,1091,1153,1223,1289,
 1361,1433,1487,1553,1609,1669,1747,1823,1889,1979,
 2029,2099,2161,2251,2311,2381,2441,2539,2617]