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A125868 as a simple table

na(n)
111
225
331
433
541
655
761
875
977
1093
1199
12101
13123
14125
15143
16151
17155
18165
19175
20181
21183
22187
23205
24209
25217
26225
27231
28241
29251
30271
31275
32279
33287
34297
35303
36305
37325
38341
39369
40375
41385
42401
43403
44407
45425
46427
47429
48451
49453
50465
51475
52495
53505
54525

[11,25,31,33,41,55,61,75,77,93,99,101,123,125,143,
 151,155,165,175,181,183,187,205,209,217,225,231,
 241,251,271,275,279,287,297,303,305,325,341,369,
 375,385,401,403,407,425,427,429,451,453,465,475,
 495,505,525]