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A201789 Primes of the form 5n^2 - 8. 1

%I #6 Sep 08 2022 08:46:01

%S 37,397,1117,3637,5437,32797,43237,55117,68437,99397,108037,117037,

%T 126397,146197,167437,178597,201997,214237,266797,280837,295237,

%U 372637,406117,459037,534637,574597,595117,615997,658837,703117,795997

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

%H Vincenzo Librandi, <a href="/A201789/b201789.txt">Table of n, a(n) for n = 1..5000</a>

%t Select[Table[5n^2-8,{n,2,1000}],PrimeQ]

%o (Magma) [a: n in [2..400] | IsPrime(a) where a is 5*n^2-8];

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Dec 05 2011

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Last modified April 19 16:03 EDT 2024. Contains 371794 sequences. (Running on oeis4.)