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Primes of the form 8n^3-9.
1

%I #6 Sep 08 2022 08:46:00

%S 503,991,10639,21943,97327,124991,195103,314423,438967,511991,1404919,

%T 1815839,2097143,2743991,3112127,3241783,3511799,4095991,4574287,

%U 4912991,5088439,9528119,11543167,12166991,14172479,17984719,21951991

%N Primes of the form 8n^3-9.

%H Vincenzo Librandi, <a href="/A200959/b200959.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Table[8n^3-9,{n,1,4000}],PrimeQ]

%o (Magma) [a: n in [1..200] | IsPrime(a) where a is 8*n^3-9]

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Nov 26 2011