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A072560 as a simple table

na(n)
13
29
33
43
51
63
73
89
93
103
111
123
133
149
153
161
171
181
193
209
213
223
231
243
253
269
273
283
291
303
313
329
333
341
351
361
373
389
393
403
411
423
433
449
453
463
471
483
493
509
513
521
531
541
553
569
573
583
591
603
613
629
633
643
651
663
673
689
693
701
711
721
733
749
753
763
771
783
793
809
813
823
831
843
853
869
873
881
891
901
913
929
933
943
951
963
973
989
993
1003
1011
1023
1033
1049
1053

[3,9,3,3,1,3,3,9,3,3,1,3,3,9,3,1,1,1,3,9,3,3,1,3,
 3,9,3,3,1,3,3,9,3,1,1,1,3,9,3,3,1,3,3,9,3,3,1,3,3,
 9,3,1,1,1,3,9,3,3,1,3,3,9,3,3,1,3,3,9,3,1,1,1,3,9,
 3,3,1,3,3,9,3,3,1,3,3,9,3,1,1,1,3,9,3,3,1,3,3,9,3,
 3,1,3,3,9,3]