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A182297 as a simple table

na(n)
121
239
355
457
5105
6111
7147
8155
9165
10171
11183
12195
13201
14203
15205
16219
17231
18237
19253
20273
21285
22291
23301
24305
25309
26327
27333
28355
29357
30385
31399
32417
33429
34453
35465
36483
37489
38495
39497
40505
41507
42525
43543
44555
45579
46597
47605
48609
49615
50627
51633
52651
53655

[21,39,55,57,105,111,147,155,165,171,183,195,201,
 203,205,219,231,237,253,273,285,291,301,305,309,
 327,333,355,357,385,399,417,429,453,465,483,489,
 495,497,505,507,525,543,555,579,597,605,609,615,
 627,633,651,655]