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A371884 as a simple table

na(n)
21
31
41
51
61
73
81
91
101
111
125
131
141
154
161
171
187
191
205
211
221
231
249
251
261
275
281
297
301
3111
321
331
341
351
3613
371
381
394
401
411
426
4310
4415
451
461
471
4811
491
5017
511
521
539
541
551
5619
571
5813
591
601
611
627
6321
641
651
661
679
681
6923
701
711
7216
731
741
7525
761
7717
781
7913
801
811
8227
831
8411
851
868
871
8819
891
9029
911
921
931
941
9531
961
971
981
995
10013

[1,1,1,1,1,3,1,1,1,1,5,1,1,4,1,1,7,1,5,1,1,1,9,1,
 1,5,1,7,1,11,1,1,1,1,13,1,1,4,1,1,6,10,15,1,1,1,
 11,1,17,1,1,9,1,1,19,1,13,1,1,1,7,21,1,1,1,9,1,23,
 1,1,16,1,1,25,1,17,1,13,1,1,27,1,11,1,8,1,19,1,29,
 1,1,1,1,31,1,1,1,5,13]