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A031344 as a simple table

na(n)
12
23
35
47
513
615
719
821
927
1033
1137
1243
1349
1451
1555
1663
1769
1873
1979
2085
2187
2293
2399
24105
25115
26145
27147
28151
29153
30159
31175
32181
33187
34189
35201
36205
37211
38219
39223
40231
41237
42241
43253
44255
45259
46261
47301
48315
49319
50321
51327
52333
53337
54349
55355

[2,3,5,7,13,15,19,21,27,33,37,43,49,51,55,63,69,
 73,79,85,87,93,99,105,115,145,147,151,153,159,175,
 181,187,189,201,205,211,219,223,231,237,241,253,
 255,259,261,301,315,319,321,327,333,337,349,355]