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A091842 as a simple table

na(n)
11
21
31
43
51
61
71
83
91
101
111
123
131
141
151
1610
171
181
191
203
211
221
231
243
251
261
271
283
291
301
311
3210
331
341
351
363
371
381
391
403
411
421
431
443
451
461
471
4810
491
501
511
523
531
541
551
563
571
581
591
603
611
621
631
6442
651
661
671
683
691
701
711
723
731
741
751
763
771
781
791
8010
811
821
831
843
851
861
871
883
891
901
911
923
931
941
951
9610

[1,1,1,3,1,1,1,3,1,1,1,3,1,1,1,10,1,1,1,3,1,1,1,3,
 1,1,1,3,1,1,1,10,1,1,1,3,1,1,1,3,1,1,1,3,1,1,1,10,
 1,1,1,3,1,1,1,3,1,1,1,3,1,1,1,42,1,1,1,3,1,1,1,3,
 1,1,1,3,1,1,1,10,1,1,1,3,1,1,1,3,1,1,1,3,1,1,1,10]