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A338715 as a simple table

na(n)
111
23
37
419
511
613
717
819
9421
1023
11127
1229
1331
14233
1537
16139
1741
1843
1947
20149
21151
2253
23157
2459
2561
26163
2767
28269
2971
3073
31277
3279
33181
3483
35487
3689
37191
38193
3997
40199
41101
42103
43107
44109
452111
46113
471117
483119
493121
501123
51127
521129
53131
544133
55137
56139
572141
582143
595147
60149
61151
621153
63157

[11,3,7,19,11,13,17,19,421,23,127,29,31,233,37,
 139,41,43,47,149,151,53,157,59,61,163,67,269,71,
 73,277,79,181,83,487,89,191,193,97,199,101,103,
 107,109,2111,113,1117,3119,3121,1123,127,1129,131,
 4133,137,139,2141,2143,5147,149,151,1153,157]