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A338049 as a simple table

na(n)
12
211
311
47
511
619
717
829
929
1029
1137
1237
1343
1443
1561
1653
1761
1871
1989
2079
2173
2279
2383
24103
2597
26103
27107
28109
29113
30127
31131
32151
33137
34151
35157
36197
37167
38167
39173
40181
41211
42199
43191
44197
45199
46211
47227
48257
49257
50241
51233
52251
53257
54251
55263
56263
57269

[2,11,11,7,11,19,17,29,29,29,37,37,43,43,61,53,61,
 71,89,79,73,79,83,103,97,103,107,109,113,127,131,
 151,137,151,157,197,167,167,173,181,211,199,191,
 197,199,211,227,257,257,241,233,251,257,251,263,
 263,269]