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A090269 as a simple table

na(n)
17
21
31
43
50
633
71
89
91
101
113
123
133
143
151
161
173
183
193
207
213
223
231
241111
25111
263
273
281
299
301
3133
321
33111
343
351
363
373
389
39777
401
413
4277
437
449
451
46777
479
483
497
50333
517
521
533
541
553
563
573
583
599
607
613
623
633
643
659
661
679
68777
697
703
713
721
7377
749
7511
761
773
789
791
809

[7,1,1,3,0,33,1,9,1,1,3,3,3,3,1,1,3,3,3,7,3,3,1,
 1111,111,3,3,1,9,1,33,1,111,3,1,3,3,9,777,1,3,77,
 7,9,1,777,9,3,7,333,7,1,3,1,3,3,3,3,9,7,3,3,3,3,9,
 1,9,777,7,3,3,1,77,9,11,1,3,9,1,9]