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A176165 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
1029
1131
1237
1341
1443
1547
1653
1759
1861
1967
2071
2173
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

[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,
 61,67,71,73,83,89,97,101,103,107,109,113,127,131,
 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]