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A201857 Primes of the form 8n^2 - 5. 1

%I

%S 3,67,283,643,4603,5827,8707,12163,14107,18427,34843,38083,41467,

%T 56443,83227,93307,98563,103963,109507,139387,165883,172867,194683,

%U 202243,233923,267907,276763,285763,383683,449347,484123,544963,596227

%N Primes of the form 8n^2 - 5.

%H Vincenzo Librandi, <a href="/A201857/b201857.txt">Table of n, a(n) for n = 1..5000</a>

%t Select[Table[8n^2-5,{n,1,300}],PrimeQ]

%o (MAGMA) [a: n in [1..300] | IsPrime(a) where a is 8*n^2-5];

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Dec 06 2011

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Last modified January 24 04:47 EST 2022. Contains 350534 sequences. (Running on oeis4.)