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A125256 as a simple table

na(n)
25
35
417
513
637
75
85
941
10101
1161
125
135
14197
15113
16257
175
185
19181
20401
2113
225
235
24577
25313
26677
275
285
29421
3017
3113
325
335
3413
35613
361297
375
385
39761
401601
4129
425
435
4413
451013
4629
475
485
491201
5041
511301
525
535
542917
5517
563137
575
585
591741
6013
611861
625
635
6417
652113
664357
675
685

[5,5,17,13,37,5,5,41,101,61,5,5,197,113,257,5,5,
 181,401,13,5,5,577,313,677,5,5,421,17,13,5,5,13,
 613,1297,5,5,761,1601,29,5,5,13,1013,29,5,5,1201,
 41,1301,5,5,2917,17,3137,5,5,1741,13,1861,5,5,17,
 2113,4357,5,5]