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A248955 as a simple table

na(n)
11
23
33
45
53
69
73
89
95
109
113
1217
133
149
159
1613
173
1817
193
2017
219
229
233
2431
255
269
279
2817
293
3029
313
3219
339
349
359
3635
373
389
399
4031
413
4229
433
4417
4517
469
473
4849
495
5017
519
5217
533
5431
559
5631
579
589
593
6061
613
629
6317
6427
659
6629
673
6817
699
7029
713
7267
733
749
7517
7617
779

[1,3,3,5,3,9,3,9,5,9,3,17,3,9,9,13,3,17,3,17,9,9,
 3,31,5,9,9,17,3,29,3,19,9,9,9,35,3,9,9,31,3,29,3,
 17,17,9,3,49,5,17,9,17,3,31,9,31,9,9,3,61,3,9,17,
 27,9,29,3,17,9,29,3,67,3,9,17,17,9]