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A097519 as a simple table

na(n)
13
25
33
43
57
65
73
817
93
1029
113
127
1317
1443
1529
163
1711
183
1911
2017
2153
2231
237
2423
2529
267
2759
285
295
303
31131
3229
3313
34131
353
3629
3711
3829
3937
4011
417
4223
4313
4417
453
467
4729
4859
4961
507
51277
52281
5343
5471
5529
5641
57277
5867
597
6029
6117
6267
6337
645
655
6697
677
68107
6919
7083
717
725
73107
74101

[3,5,3,3,7,5,3,17,3,29,3,7,17,43,29,3,11,3,11,17,
 53,31,7,23,29,7,59,5,5,3,131,29,13,131,3,29,11,29,
 37,11,7,23,13,17,3,7,29,59,61,7,277,281,43,71,29,
 41,277,67,7,29,17,67,37,5,5,97,7,107,19,83,7,5,
 107,101]