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A107738 as a simple table

na(n)
13
27
35
45
511
67
717
813
97
1023
1111
1211
1313
1413
1519
1617
1741
1811
197
2047
2117
2211
2317
2411
2519
2619
2713
2823
2971
3023
3131
3211
3313
3423
3523
3683
3713
3817
3937
4029
4129
42101
4313
44107
4529
4611
47113
4829
4937
5011
5117
52131
5331
5419
5537
5619
5729
5819
5943

[3,7,5,5,11,7,17,13,7,23,11,11,13,13,19,17,41,11,
 7,47,17,11,17,11,19,19,13,23,71,23,31,11,13,23,23,
 83,13,17,37,29,29,101,13,107,29,11,113,29,37,11,
 17,131,31,19,37,19,29,19,43]