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A154547 Sophie Germain primes of A154276. 1

%I

%S 902501,10824101,19096901,26832401,40322501,166926401,255360401,

%T 309760001,335622401,338928101,404814401,412090001,430562501,

%U 441840401,651270401,702780101,885062501,1006792901,1029768101,1160764901

%N Sophie Germain primes of A154276.

%t lst={};Do[If[PrimeQ[p=81*n^2-72*n+17],If[PrimeQ[2*p+1],AppendTo[lst,p]]],{n,8!}];lst

%Y Cf. A154276, A154546

%K nonn

%O 1,1

%A _Vladimir Joseph Stephan Orlovsky_, Jan 11 2009

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Last modified June 29 09:21 EDT 2022. Contains 354910 sequences. (Running on oeis4.)