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A306289 as a simple table

na(n)
15
27
311
413
517
619
723
85
929
1031
115
1237
1341
1443
1547
167
1753
185
1959
2061
215
2267
2371
2473
257
2679
2783
285
2989
307
315
3297
33101
34103
35107
36109
37113
385
397
4011
415
42127
43131
447
45137
46139
4711
485
49149
50151
515
52157
537
54163
55167
5613
57173
585
59179
60181
615
6211
63191
64193

[5,7,11,13,17,19,23,5,29,31,5,37,41,43,47,7,53,5,
 59,61,5,67,71,73,7,79,83,5,89,7,5,97,101,103,107,
 109,113,5,7,11,5,127,131,7,137,139,11,5,149,151,5,
 157,7,163,167,13,173,5,179,181,5,11,191,193]