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A049481 as a simple table

na(n)
17
211
313
417
523
629
731
837
941
1043
1153
1259
1367
1471
1573
1679
1783
1897
19101
20107
21109
22127
23137
24149
25151
26163
27167
28181
29193
30197
31199
32211
33227
34233
35239
36241
37251
38263
39277
40281
41283
42307
43317
44337
45349
46353
47359
48367
49379
50389
51401
52409
53419
54431
55433
56449

[7,11,13,17,23,29,31,37,41,43,53,59,67,71,73,79,
 83,97,101,107,109,127,137,149,151,163,167,181,193,
 197,199,211,227,233,239,241,251,263,277,281,283,
 307,317,337,349,353,359,367,379,389,401,409,419,
 431,433,449]