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A236183 as a simple table

na(n)
12
23
35
413
517
619
737
873
997
10101
11109
12151
13163
14181
15193
16197
17211
18241
19251
20257
21271
22281
23337
24379
25397
26401
27421
28433
29449
30487
31491
32541
33577
34601
35631
36641
37661
38673
39701
40727
41751
42757
43769
44811
45881
46883
47991
481009

[2,3,5,13,17,19,37,73,97,101,109,151,163,181,193,
 197,211,241,251,257,271,281,337,379,397,401,421,
 433,449,487,491,541,577,601,631,641,661,673,701,
 727,751,757,769,811,881,883,991,1009]