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A295509 as a simple table

na(n)
12
23
37
417
5241
6199
7647
81117
94231
108161
1115361
1228057
1367801
14308509
15263101
16515089
171525921
182103817
193376459

[2,3,7,17,241,199,647,1117,4231,8161,15361,28057,
 67801,308509,263101,515089,1525921,2103817,
 3376459]