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%I #13 Mar 20 2023 13:38:46
%S 23,41,89,191,233,383,503,569,1049,1559,1913,2039,2441,2729,2879,3191,
%T 3863,4409,4793,5399,6263,6719,7433,8969,9239,9791,12473,12791,14783,
%U 16553,18041,19991,20393,23753,26903,29759,33791,34313,37529,39191,46199
%N Primes of the form 2n^2-9.
%C Equivalently, primes of the form 2n^2+16n+23.
%H Vincenzo Librandi, <a href="/A155702/b155702.txt">Table of n, a(n) for n = 1..5000</a>
%t Select[Table[2n^2-9,{n,2,800}],PrimeQ]
%o (Magma) [a: n in [2..300] | IsPrime(a) where a is 2*n^2-9];
%Y Cf. A155703, A153037.
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Jan 25 2009
%E Definition rewritten by _Bruno Berselli_, Dec 04 2011
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