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A057605 Nonnegative n such that 4*n^2 + 163 is prime. 4

%I #13 Sep 08 2022 08:45:02

%S 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,22,24,25,27,28,29,

%T 31,32,33,34,36,37,38,39,40,42,43,44,45,46,47,49,50,51,52,53,54,55,57,

%U 58,59,60,64,67,69,70,71,72,74,77,78,79,80,81,82,84,85,88,89,90,91,92

%N Nonnegative n such that 4*n^2 + 163 is prime.

%H Vincenzo Librandi, <a href="/A057605/b057605.txt">Table of n, a(n) for n = 1..2000</a>

%p a := []; for n from 0 to 500 do if isprime(4*n^2+163) then a := [op(a), n]; fi; od: a;

%t Select[Range[0,100],PrimeQ[4#^2+163]&] (* _Harvey P. Dale_, Aug 14 2014 *)

%o (Magma) [n: n in [0..100] | IsPrime( 4*n^2 + 163 )]; // _Vincenzo Librandi_, Aug 15 2014

%Y Cf. A057604.

%K nonn

%O 1,3

%A _N. J. A. Sloane_, Oct 08 2000

%E More terms from _James R. Buddenhagen_, Mar 03 2001

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Last modified May 25 03:08 EDT 2024. Contains 372782 sequences. (Running on oeis4.)