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A329973 as a simple table

na(n)
15
23
33
47
53
63
73
87
93
105
1123
1267
133
147
157
1613
175
185
197
205
215
2267
233
243
2537
2617
2743
285
2913
303
317
32127
333
3419
355
3617
3753
383
393
4043
415
4219
4323
443
453
46101
4717
483
4941
5037
5113
5217
537
547
5537
563
5759
5823
5931
60257
617
6247
6331
645
657
6611
673
6867
693
703
7143
7223

[5,3,3,7,3,3,3,7,3,5,23,67,3,7,7,13,5,5,7,5,5,67,
 3,3,37,17,43,5,13,3,7,127,3,19,5,17,53,3,3,43,5,
 19,23,3,3,101,17,3,41,37,13,17,7,7,37,3,59,23,31,
 257,7,47,31,5,7,11,3,67,3,3,43,23]