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A088840 as a simple table

na(n)
11
21
31
47
51
61
71
85
91
101
111
127
131
141
151
1631
171
181
191
207
211
221
231
245
251
261
271
287
291
301
311
3221
331
341
351
367
371
381
391
405
411
421
431
447
451
461
471
4831
491
501
511
527
531
541
551
565
571
581
591
607
611
621
631
64127
651
661
671
687
691
701
711
725
731
741
751
767
771
781
791
8031
811
821
831
847
851
861
871
885
891
901
911
927
931
941
951
9621
971
981
991
1007
1011
1021

[1,1,1,7,1,1,1,5,1,1,1,7,1,1,1,31,1,1,1,7,1,1,1,5,
 1,1,1,7,1,1,1,21,1,1,1,7,1,1,1,5,1,1,1,7,1,1,1,31,
 1,1,1,7,1,1,1,5,1,1,1,7,1,1,1,127,1,1,1,7,1,1,1,5,
 1,1,1,7,1,1,1,31,1,1,1,7,1,1,1,5,1,1,1,7,1,1,1,21,
 1,1,1,7,1,1]