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A233518 as a simple table

na(n)
17
213
317
419
523
629
731
837
941
1043
1147
1261
1367
1471
1573
1679
1789
1897
19101
20103
21109
22113
23127
24131
25137
26139
27149
28151
29157
30163
31167
32173
33181
34191
35193
36197
37199
38211
39223
40229
41233
42239
43241
44251
45257
46263
47271
48277
49281
50283
51307
52311
53313
54331
55337

[7,13,17,19,23,29,31,37,41,43,47,61,67,71,73,79,
 89,97,101,103,109,113,127,131,137,139,149,151,157,
 163,167,173,181,191,193,197,199,211,223,229,233,
 239,241,251,257,263,271,277,281,283,307,311,313,
 331,337]