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A126715 as a simple table

na(n)
03
13
23
33
43
57
63
73
85
97
105
113
125
1331
145
1579
1617
177
183
1961
2017
217
2283
2313
2483
2561
2611
27193
2883
297
30521
3143
325
3331
343
3531
3617
3731
383
3961
40107
4119
4253
433
44557
457
4623
4731
485
4919
5011
511033
5289
53307
545
553
56563
5779
5883
59733
6017
6179
6253
6361
643
6567
66257
6743
68179
69139
7047
7173
725
73421
74113

[3,3,3,3,3,7,3,3,5,7,5,3,5,31,5,79,17,7,3,61,17,7,
 83,13,83,61,11,193,83,7,521,43,5,31,3,31,17,31,3,
 61,107,19,53,3,557,7,23,31,5,19,11,1033,89,307,5,
 3,563,79,83,733,17,79,53,61,3,67,257,43,179,139,
 47,73,5,421,113]