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A135508 as a simple table

na(n)
12
23
31
41
51
67
72
81
91
1011
111
121
137
141
151
1617
171
181
191
207
2111
2223
231
241
251
261
277
2829
291
301
312
3211
3317
347
351
3637
371
381
391
4041
417
421
4311
441
4523
4647
471
481
491
5017
511
5253
531
541
551
561
5729
5859
591
601
611
621
631
641
651
6667
6717
681
691
7071
711
721
7337
741
751
761
771
7879
791
801
8141
8283
831
841
851
8629
871
8889
891
901
911
921

[2,3,1,1,1,7,2,1,1,11,1,1,7,1,1,17,1,1,1,7,11,23,
 1,1,1,1,7,29,1,1,2,11,17,7,1,37,1,1,1,41,7,1,11,1,
 23,47,1,1,1,17,1,53,1,1,1,1,29,59,1,1,1,1,1,1,1,
 67,17,1,1,71,1,1,37,1,1,1,1,79,1,1,41,83,1,1,1,29,
 1,89,1,1,1,1]