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A096919 as a simple table

na(n)
15
27
311
47
513
617
77
811
919
1013
1123
1211
1311
1417
1529
1613
1731
1819
1913
2037
2123
2211
2317
2441
2517
2643
2719
2813
2947
3019
3113
3229
3331
3453
3523
3623
3759
3817
3961
4037
4117
4211
4319
4467
4529
4641
4719
4871
4913
5043
5131
5229
5373
5417
5513
5631
5747
5879
5923
6019
6183
6223
6337
6453
6589
6637
6717
6841
6997
7059

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