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A013606 as a simple table

na(n)
11
23
33
45
53
63
73
815
95
103
113
123
135
1457
1535
165
1741
185
1945
2087
2111
2217
2321
2459
2527
2647
2733
285
2927
3093
3157
3259
335
3423
3535
3693
3735
3815
3911
4065
4157
4235
4335
44299
4533
4683
473
4817
4951
5015
5133
5217
53117
5459
5521
5675
5711
583
595
60119
613
6259
63137
64159
655
66347
6745
68113
69105
7027
71111

[1,3,3,5,3,3,3,15,5,3,3,3,5,57,35,5,41,5,45,87,11,
 17,21,59,27,47,33,5,27,93,57,59,5,23,35,93,35,15,
 11,65,57,35,35,299,33,83,3,17,51,15,33,17,117,59,
 21,75,11,3,5,119,3,59,137,159,5,347,45,113,105,27,
 111]