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A296520 as a simple table

na(n)
113
217
319
423
529
631
737
841
943
1047
1153
1259
1361
1467
1571
1673
1779
1883
1989
2097
21103
22107
23109
24113
25127
26131
27137
28139
29149
30151
31157
32163
33167
34173
35179
36181
37191
38193
39197
40211
41223
42227
43229
44239
45241
46251
47257
48263
49269
50271

[13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,
 79,83,89,97,103,107,109,113,127,131,137,139,149,
 151,157,163,167,173,179,181,191,193,197,211,223,
 227,229,239,241,251,257,263,269,271]