A154503 - OEIS

%I #4 Jun 02 2025 01:18:11

%S 1,5,11,15,21,29,45,49,55,61,71,85,119,129,131,135,139,151,175,185,

%T 209,211,219,229,231,259,265,275,309,311,321,331,339,349,365,371,415,

%U 421,435,439,465,491,499,501,505,519,549,551,555,561,565,575,591,601,609

%N Numbers n of A144571.

%t lst={};Do[If[PrimeQ[p=81*n^2-90*n+26],AppendTo[lst,n]],{n,7!}];lst

%Y Cf. A144571

%K nonn

%O 1,2

%A _Vladimir Joseph Stephan Orlovsky_, Jan 11 2009