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A307530 as a simple table

na(n)
13
223
347
459
561
679
797
8137
9139
10163
11167
12191
13193
14223
15251
16281
17283
18313
19317
20349
21353
22359
23389
24397
25431
26433
27439
28479
29521
30523
31563
32569
33571
34613
35617
36619
37659
38661
39673
40719
41727
42769
43773
44823
45827
46829
47839
48881
49883
50887
51941
52947
53953
541009

[3,23,47,59,61,79,97,137,139,163,167,191,193,223,
 251,281,283,313,317,349,353,359,389,397,431,433,
 439,479,521,523,563,569,571,613,617,619,659,661,
 673,719,727,769,773,823,827,829,839,881,883,887,
 941,947,953,1009]