login

A142157 as a simple table

na(n)
11
21
33
43
51
61
77
83
93
105
113
127
135
143
153
163
173
181
193
205
211
227
239
241
255
261
277
287
293
307
317
323
339
345
351
363
379
389
391
405
413
425
435
447
451
465
471
485
499
505
513
523
535
541
559
567
579
589
595
605
615
629
631
641
653
663
671
681
697
703
713
725
733
747
755
763
773
783
793
801
813
825
831
847
859
861
875
881
897
907
913
927
937
943
959
965
971
983
999
1009
1011

[1,1,3,3,1,1,7,3,3,5,3,7,5,3,3,3,3,1,3,5,1,7,9,1,
 5,1,7,7,3,7,7,3,9,5,1,3,9,9,1,5,3,5,5,7,1,5,1,5,9,
 5,3,3,5,1,9,7,9,9,5,5,5,9,1,1,3,3,1,1,7,3,3,5,3,7,
 5,3,3,3,3,1,3,5,1,7,9,1,5,1,7,7,3,7,7,3,9,5,1,3,9,
 9,1]