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A138342 as a simple table

na(n)
11
29
31
489
51
69
71
8889
91
109
111
1289
131
149
151
168889
171
189
191
2089
211
229
231
24889
251
269
271
2889
291
309
311
3288889
331
349
351
3689
371
389
391
40889
411
429
431
4489
451
469
471
488889
491
509
511
5289
531
549
551
56889
571
589
591
6089
611
629
631
64888889
651
669
671
6889
691
709
711
72889
731
749
751
7689
771
789
791
808889
811
829
831
8489
851
869

[1,9,1,89,1,9,1,889,1,9,1,89,1,9,1,8889,1,9,1,89,
 1,9,1,889,1,9,1,89,1,9,1,88889,1,9,1,89,1,9,1,889,
 1,9,1,89,1,9,1,8889,1,9,1,89,1,9,1,889,1,9,1,89,1,
 9,1,888889,1,9,1,89,1,9,1,889,1,9,1,89,1,9,1,8889,
 1,9,1,89,1,9]