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A093931 as a simple table

na(n)
13
27
311
45
519
613
717
823
929
1043
1137
1231
1341
1447
1553
1659
1773
1867
1961
2071
2197
2283
2379
2489
25103
26107
27101
28127
29113
30109
31131
32137
33151
34157
35163
36149
37139
38173
39167
40181
41191
42197
43193
44179
45241
46227
47223
48229
49233
50199
51257
52211
53269
54263
55277
56239
57313
58251

[3,7,11,5,19,13,17,23,29,43,37,31,41,47,53,59,73,
 67,61,71,97,83,79,89,103,107,101,127,113,109,131,
 137,151,157,163,149,139,173,167,181,191,197,193,
 179,241,227,223,229,233,199,257,211,269,263,277,
 239,313,251]