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A112303 as a simple table

na(n)
12
27
33
417
511
65
729
819
913
1041
1131
1223
1353
1443
1537
1667
1759
1847
1979
2071
2161
2297
2383
2473
25107
26101
2789
28127
29109
30103
31139
32139
33131
34113
35157
36149
37137
38173
39163
40151
41191
42179
43167
44193
45181
46227
47211
48197
49239
50229
51223
52257
53263
54251

[2,7,3,17,11,5,29,19,13,41,31,23,53,43,37,67,59,
 47,79,71,61,97,83,73,107,101,89,127,109,103,139,
 139,131,113,157,149,137,173,163,151,191,179,167,
 193,181,227,211,197,239,229,223,257,263,251]