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A216742 as a simple table

na(n)
15
27
313
423
529
631
737
847
953
1061
1167
1271
1379
1489
15101
16103
17109
18127
19149
20151
21157
22167
23173
24181
25191
26197
27199
28223
29229
30239
31263
32269
33271
34277
35293
36311
37317
38349
39353
40359
41367
42373
43383
44389
45397
46419
47421
48431
49439
50461
51463
52479
53487
54503
55509
56541

[5,7,13,23,29,31,37,47,53,61,67,71,79,89,101,103,
 109,127,149,151,157,167,173,181,191,197,199,223,
 229,239,263,269,271,277,293,311,317,349,353,359,
 367,373,383,389,397,419,421,431,439,461,463,479,
 487,503,509,541]