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A186641 as a simple table

na(n)
12
23
35
411
513
631
737
841
943
1053
1167
1271
1373
1479
1583
1689
17101
18103
19107
20127
21137
22139
23151
24157
25163
26173
27191
28197
29199
30211
31227
32239
33241
34251
35271
36277
37281
38283
39293
40307
41311
42317
43331
44347
45349
46353
47359
48373
49397
50401
51409
52421
53431
54439
55443
56449
57457
58463
59467
60479

[2,3,5,11,13,31,37,41,43,53,67,71,73,79,83,89,101,
 103,107,127,137,139,151,157,163,173,191,197,199,
 211,227,239,241,251,271,277,281,283,293,307,311,
 317,331,347,349,353,359,373,397,401,409,421,431,
 439,443,449,457,463,467,479]