%I #11 Sep 09 2024 14:53:14

%S 41,8641,13721,87881,163841,274361,370441,1437481,2026121,2372761,

%T 4423681,6655001,7804481,8640001,10001881,11499841,12030521,13720001,

%U 15560681,17559041,32174281,35389441,47640641,54705241,64064521,80015041

%N Primes of the form 5n^3+1.

%H Vincenzo Librandi, <a href="/A201171/b201171.txt">Table of n, a(n) for n = 1..2700</a>

%t Select[Table[5n^3+1,{n,0,6000}],PrimeQ]

%o (Magma) [a: n in [0..300] | IsPrime(a) where a is 5*n^3+1];

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Nov 28 2011