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A105884 as a simple table

na(n)
15
217
323
441
547
653
759
871
983
10101
11107
12113
13131
14137
15149
16167
17173
18179
19191
20197
21227
22239
23251
24257
25263
26269
27281
28293
29311
30317
31347
32353
33359
34383
35389
36401
37419
38443
39449
40461
41467
42479
43503
44509
45557
46563
47569
48587
49593
50599
51617
52641
53647
54653
55683
56701

[5,17,23,41,47,53,59,71,83,101,107,113,131,137,
 149,167,173,179,191,197,227,239,251,257,263,269,
 281,293,311,317,347,353,359,383,389,401,419,443,
 449,461,467,479,503,509,557,563,569,587,593,599,
 617,641,647,653,683,701]