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A357773 as a simple table

na(n)
19
219
321
425
539
643
745
851
953
1057
1179
1287
1391
1493
15103
16107
17109
18115
19117
20121
21159
22175
23183
24187
25189
26207
27215
28219
29221
30231
31235
32237
33243
34245
35249
36319
37351
38367
39375
40379
41381
42415
43431
44439
45443
46445
47463
48471
49475
50477
51487
52491
53493
54499
55501

[9,19,21,25,39,43,45,51,53,57,79,87,91,93,103,107,
 109,115,117,121,159,175,183,187,189,207,215,219,
 221,231,235,237,243,245,249,319,351,367,375,379,
 381,415,431,439,443,445,463,471,475,477,487,491,
 493,499,501]