A154504 - OEIS

%I #2 Mar 31 2012 12:38:19

%S 5,11,29,61,71,131,139,151,211,229,311,331,349,421,439,491,499,601,

%T 619,661,739,821,829,911,1049,1201,1229,1231,1249,1289,1319,1559,1609,

%U 1619,1741,1879,1999,2011,2111,2221,2239,2441,2609,2689,2729,2749,2861,2969

%N Prime numbers of A154503.

%t lst={};Do[If[PrimeQ[p=81*n^2-90*n+26],If[PrimeQ[n],AppendTo[lst,n]]],{n,8!}];lst

%Y Cf. A144571, A154503

%K nonn

%O 1,1

%A _Vladimir Joseph Stephan Orlovsky_, Jan 11 2009