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A359947 as a simple table

na(n)
13
23
37
47
53
63
713
83
95
1013
113
125
133
143
1531
1631
173
183
197
207
213
223
2313
243
255
2613
273
285
293
303
3161
323
335
3461
353
365
373
383
3913
403
415
4213
433
445
453
463
4731
4831
493
503
517
527
533
543
5513
563
575
5813
593
605
613
623
63127
64127
653
663
677
687
693
703
7113
723
735
7413
753
765
773
783
7931
8031

[3,3,7,7,3,3,13,3,5,13,3,5,3,3,31,31,3,3,7,7,3,3,
 13,3,5,13,3,5,3,3,61,3,5,61,3,5,3,3,13,3,5,13,3,5,
 3,3,31,31,3,3,7,7,3,3,13,3,5,13,3,5,3,3,127,127,3,
 3,7,7,3,3,13,3,5,13,3,5,3,3,31,31]