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A240699 as a simple table

na(n)
13
25
37
411
513
617
719
823
929
1031
1137
1241
1343
1447
1553
1659
1761
1867
1971
2073
2179
2283
2389
2497
25101
26103
27107
28109
29113
30127
31131
32137
33139
34149
35151
36157
37163
38167
39173
40179
41181
42191
43193
44197
45199
46223
47227
48229
49233
50239
51241
52251
53257
54263
55269
56271
57277
58281

[3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,
 67,71,73,79,83,89,97,101,103,107,109,113,127,131,
 137,139,149,151,157,163,167,173,179,181,191,193,
 197,199,223,227,229,233,239,241,251,257,263,269,
 271,277,281]