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A189986 as a simple table

na(n)
121
233
357
465
569
677
785
893
9125
10129
11133
12141
13145
14161
15177
16185
17201
18205
19209
20213
21217
22221
23237
24249
25253
26265
27301
28305
29309
30321
31329
32341
33365
34377
35381
36393
37413
38417
39437
40445
41453
42469
43473
44481
45485
46489
47493
48497
49501
50505
51517
52533
53537
54545

[21,33,57,65,69,77,85,93,125,129,133,141,145,161,
 177,185,201,205,209,213,217,221,237,249,253,265,
 301,305,309,321,329,341,365,377,381,393,413,417,
 437,445,453,469,473,481,485,489,493,497,501,505,
 517,533,537,545]