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A070647 as a simple table

na(n)
13
25
37
45
57
611
713
811
917
107
1119
1213
1323
1417
1511
1619
1729
1831
1913
2023
2137
2211
2341
2417
2543
2629
2713
2831
2947
3019
3153
3237
3323
3459
3517
3661
3741
3843
3919
4067
4147
4271
4313
4429
4573
4631
4779
4853
4923
5083
5159
5289
5361
5437
5517
5697
5767
58101
5929
6041
61103
6219
6371
64107
6543
6631
67109
6873
6917

[3,5,7,5,7,11,13,11,17,7,19,13,23,17,11,19,29,31,
 13,23,37,11,41,17,43,29,13,31,47,19,53,37,23,59,
 17,61,41,43,19,67,47,71,13,29,73,31,79,53,23,83,
 59,89,61,37,17,97,67,101,29,41,103,19,71,107,43,
 31,109,73,17]