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A243544 as a simple table

na(n)
15
211
329
437
541
643
753
861
971
1073
1183
1297
13109
14113
15127
16137
17149
18157
19167
20181
21191
22211
23223
24229
25241
26271
27277
28281
29307
30317
31331
32359
33389
34421
35433
36443
37461
38463
39487
40499
41547
42557
43571
44587
45601
46617
47631
48659
49661
50683
51691
52701
53709
54733
55757

[5,11,29,37,41,43,53,61,71,73,83,97,109,113,127,
 137,149,157,167,181,191,211,223,229,241,271,277,
 281,307,317,331,359,389,421,433,443,461,463,487,
 499,547,557,571,587,601,617,631,659,661,683,691,
 701,709,733,757]