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A093933 as a simple table

na(n)
13
25
311
431
517
661
7113
879
941
10179
11353
1243
13191
14109
1523
16211
17317
18199
19443
20577
21151
22881
231039
24541
257
26977
271381
28557
291627
30101
311231
321993
33421
342339
351783
36293
373011
38499
39173
403847
41733
421091
43367
442659
452273
461879
471481
483169
4947
501409
511867

[3,5,11,31,17,61,113,79,41,179,353,43,191,109,23,
 211,317,199,443,577,151,881,1039,541,7,977,1381,
 557,1627,101,1231,1993,421,2339,1783,293,3011,499,
 173,3847,733,1091,367,2659,2273,1879,1481,3169,47,
 1409,1867]