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A122507 as a simple table

na(n)
11
21
33
41
53
67
71
83
97
1011
111
123
137
1411
1519
161
173
187
1911
2019
2123
221
233
247
2511
2619
2723
2835
291
303
317
3211
3319
3423
3535
3643
371
383
397
4011
4119
4223
4335
4443
4555
461
473
487
4911
5019
5123
5235
5343
5455
5563
561
573
587
5911
6019
6123
6235
6343
6455
6563
6683

[1,1,3,1,3,7,1,3,7,11,1,3,7,11,19,1,3,7,11,19,23,
 1,3,7,11,19,23,35,1,3,7,11,19,23,35,43,1,3,7,11,
 19,23,35,43,55,1,3,7,11,19,23,35,43,55,63,1,3,7,
 11,19,23,35,43,55,63,83]