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A087349 as a simple table

na(n)
13
25
35
49
57
613
79
811
911
1021
1113
1225
1315
1417
1517
1633
1719
1837
1921
2023
2123
2245
2325
2429
2527
2629
2729
2857
2931
3061
3133
3235
3335
3439
3537
3673
3739
3841
3941
4081
4143
4285
4345
4447
4547
4693
4749
4855
4951
5053
5153
52105
5355
5459
5557
5659
5759
58117
5961
60121
6163
6265
6365
6469
6567
66133
6769
6871
6971

[3,5,5,9,7,13,9,11,11,21,13,25,15,17,17,33,19,37,
 21,23,23,45,25,29,27,29,29,57,31,61,33,35,35,39,
 37,73,39,41,41,81,43,85,45,47,47,93,49,55,51,53,
 53,105,55,59,57,59,59,117,61,121,63,65,65,69,67,
 133,69,71,71]