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A051995 as a simple table

na(n)
19
21
33
41
51
61
719
87
923
1025
115
129
131
1431
151
167
177
181
193
201
2113
2241
2343
243
2515
2615
279
283
297
301
3149
3217
331
3453
3511
3611
3719
3859
393
401
4113
424
431
4423
455
4615
477
4811
4927
505
515
521
533
541
557
561
5719
583
59101
607
613
623
6311
6425
65127
6643
677
6827
6913
7029
713
7231
733
741
7525
7659
77179
789
797
8047
8113

[9,1,3,1,1,1,19,7,23,25,5,9,1,31,1,7,7,1,3,1,13,
 41,43,3,15,15,9,3,7,1,49,17,1,53,11,11,19,59,3,1,
 13,4,1,23,5,15,7,11,27,5,5,1,3,1,7,1,19,3,101,7,3,
 3,11,25,127,43,7,27,13,29,3,31,3,1,25,59,179,9,7,
 47,13]