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A083574 as a simple table

na(n)
13
23
33
45
53
67
75
85
93
103
113
123
1311
145
157
163
1713
183
193
205
217
227
233
2417
255
2611
273
2819
293
303
317
325
3313
343
3523
363
375
385
397
4011
413
423
433
443
455
4617
473
4829
497
5013
513
5231
535
5419
553
563
5711
583
595
607
613
6237
635
6423
653
663
6713
687
6917
7011
7111
723
7341
745
755
765
773
7843
797

[3,3,3,5,3,7,5,5,3,3,3,3,11,5,7,3,13,3,3,5,7,7,3,
 17,5,11,3,19,3,3,7,5,13,3,23,3,5,5,7,11,3,3,3,3,5,
 17,3,29,7,13,3,31,5,19,3,3,11,3,5,7,3,37,5,23,3,3,
 13,7,17,11,11,3,41,5,5,5,3,43,7]