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A348936 as a simple table

na(n)
15
27
311
413
517
625
729
835
941
1049
1155
1259
1365
1471
1577
1685
1789
1891
1995
20101
21115
22119
23121
24125
25131
26143
27145
28155
29161
30167
31169
32173
33175
34185
35187
36203
37205
38209
39215
40221
41227
42235
43245
44253
45265
46275
47287
48289
49293
50295
51305
52319
53323
54325
55329
56343
57355
58361
59365
60377
61383
62385
63391
64413
65415
66425
67445
68451

[5,7,11,13,17,25,29,35,41,49,55,59,65,71,77,85,89,
 91,95,101,115,119,121,125,131,143,145,155,161,167,
 169,173,175,185,187,203,205,209,215,221,227,235,
 245,253,265,275,287,289,293,295,305,319,323,325,
 329,343,355,361,365,377,383,385,391,413,415,425,
 445,451]