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A138069 as a simple table

na(n)
12
22
37
42
52
67
71
87
92
102
117
121
138
141
157
162
172
187
191
208
212
228
231
247
252
262
277
281
298
302
318
322
338
341
357
362
372
387
391
408
412
428
431
448
452
468
471
487
492
502
517
521
538
542
558
561
578
581
598
602
618
621
637
642
652
667
671
688
692
708
711
728
732
748
751
768
772
788
791
807
812

[2,2,7,2,2,7,1,7,2,2,7,1,8,1,7,2,2,7,1,8,2,8,1,7,
 2,2,7,1,8,2,8,2,8,1,7,2,2,7,1,8,2,8,1,8,2,8,1,7,2,
 2,7,1,8,2,8,1,8,1,8,2,8,1,7,2,2,7,1,8,2,8,1,8,2,8,
 1,8,2,8,1,7,2]