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A147956 as a simple table

na(n)
11
27
311
417
519
623
729
831
937
1041
1143
1247
1349
1453
1559
1661
1767
1871
1973
2077
2179
2283
2397
24101
25103
26107
27109
28113
29119
30121
31127
32131
33133
34137
35139
36149
37151
38157
39161
40163
41167
42173
43179
44181
45187
46191
47193
48197
49199
50203
51209
52211
53217
54223
55227
56229
57239
58241

[1,7,11,17,19,23,29,31,37,41,43,47,49,53,59,61,67,
 71,73,77,79,83,97,101,103,107,109,113,119,121,127,
 131,133,137,139,149,151,157,161,163,167,173,179,
 181,187,191,193,197,199,203,209,211,217,223,227,
 229,239,241]