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A050668 as a simple table

na(n)
123
241
347
453
571
679
783
8113
9149
10181
11229
12293
13311
14349
15359
16379
17421
18433
19523
20541
21587
22593
23617
24619
25661
26701
27719
28727
29769
30787
31797
32881
33971
341327
351373
361399
371471
381543
391741
401747
411811
421889
431913
441979
452027
462129
472137
482161
492251

[23,41,47,53,71,79,83,113,149,181,229,293,311,349,
 359,379,421,433,523,541,587,593,617,619,661,701,
 719,727,769,787,797,881,971,1327,1373,1399,1471,
 1543,1741,1747,1811,1889,1913,1979,2027,2129,2137,
 2161,2251]