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A254378 as a simple table

na(n)
11
21
35
41
53
61
71
81
95
101
111
121
133
141
155
161
173
181
191
201
213
221
235
241
251
261
275
281
293
301
311
321
335
341
351
361
373
381
395
401
411
421
435
441
453
461
471
481
493
501
515
521
533
541
551
561
575
581
591
601
613
621
635
641
653
661
671
681
693
701
715
721
731
741
755
761
773
781
791
801
813
821
835
841
853
861
871
881
895
901
911
921
933
941
955
961
971

[1,1,5,1,3,1,1,1,5,1,1,1,3,1,5,1,3,1,1,1,3,1,5,1,
 1,1,5,1,3,1,1,1,5,1,1,1,3,1,5,1,1,1,5,1,3,1,1,1,3,
 1,5,1,3,1,1,1,5,1,1,1,3,1,5,1,3,1,1,1,3,1,5,1,1,1,
 5,1,3,1,1,1,3,1,5,1,3,1,1,1,5,1,1,1,3,1,5,1,1]