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A317833 as a simple table

na(n)
11
21
31
47
51
65
71
825
97
109
111
1231
131
1413
155
16363
171
1855
191
2055
217
2221
231
24101
257
2625
2733
2879
291
3041
311
321335
3311
3433
355
36305
371
3837
3913
40177
411
4259
431
44127
4547
4645
471
481371
497
50175
5117
52151
531
54309
557
56253
5719
5857
591
60187
611
6261
6367
649923
659
6695
671
68199
6923
70113
711
72927
731
7473
7587
76223
775
78113
791
802379
81715
8281
831
84265
8511

[1,1,1,7,1,5,1,25,7,9,1,31,1,13,5,363,1,55,1,55,7,
 21,1,101,7,25,33,79,1,41,1,1335,11,33,5,305,1,37,
 13,177,1,59,1,127,47,45,1,1371,7,175,17,151,1,309,
 7,253,19,57,1,187,1,61,67,9923,9,95,1,199,23,113,
 1,927,1,73,87,223,5,113,1,2379,715,81,1,265,11]