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A169915 Numbers n such that 2n+A067076(n) is prime. 1

%I #4 Mar 30 2012 17:37:58

%S 1,2,6,9,12,23,28,29,32,36,39,43,49,52,59,64,69,73,87,99,101,107,120,

%T 121,125,133,134,135,138,141,144,159,161,168,177,186,196,200,202,219,

%U 220,225,243,250,251,256,270,277,287,294,297,307,312,321,324,346,351

%N Numbers n such that 2n+A067076(n) is prime.

%C Introduced in an attempt to understand A177018.

%K nonn

%O 1,2

%A R. J. Mathar, Jun 18 2010

%E Terms beyond a(20)=99 from _John W. Layman_, Aug 10 2010

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)