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A084726 as a simple table

na(n)
11
21
31
43
57
65
75
85
97
107
111
127
1311
143
1541
1615
1721
1825
1911
203
2169
225
2387
2435
2517
2627
271
2827
295
309
313
3253
339
3421
3525
369
371
3857
3915
4019
411
4221
43191
4419
4525
46149
4783
4823
497
50121
51205
52133
53185
5439
5543
5623
579
589
593
60257
61109
6225
63107
6465
6519
6643
6797
68115
69197
7089
71109
7255
731
74161
7561

[1,1,1,3,7,5,5,5,7,7,1,7,11,3,41,15,21,25,11,3,69,
 5,87,35,17,27,1,27,5,9,3,53,9,21,25,9,1,57,15,19,
 1,21,191,19,25,149,83,23,7,121,205,133,185,39,43,
 23,9,9,3,257,109,25,107,65,19,43,97,115,197,89,
 109,55,1,161,61]