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A364414 as a simple table

na(n)
121
227
333
439
551
657
763
869
981
1087
1193
1299
13111
14117
15123
16129
17141
18147
19153
20159
21171
22177
23183
24189
25201
26207
27213
28219
29231
30237
31243
32249
33261
34267
35273
36279
37291
38297
39303
40309
41321
42327
43333
44339
45351
46357

[21,27,33,39,51,57,63,69,81,87,93,99,111,117,123,
 129,141,147,153,159,171,177,183,189,201,207,213,
 219,231,237,243,249,261,267,273,279,291,297,303,
 309,321,327,333,339,351,357]