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A138687 Composite n with no prime of the form 2n + p^2 for any prime p. 1

%I #9 Nov 04 2013 17:13:04

%S 28,34,55,58,76,88,100,106,118,133,145,148,160,166,178,184,202,208,

%T 214,232,238,244,253,259,262,265,268,286,298,301,310,328,340,343,352,

%U 358,361,364,370,385,388,391,403,412,418,430,442,445,448,454,475,478,490

%N Composite n with no prime of the form 2n + p^2 for any prime p.

%F Composite members of A138685.

%Y Cf. A138479, A138685, A138686.

%K nonn

%O 1,1

%A _Artur Jasinski_, Mar 26 2008

%E Typo corrected by _Michel Marcus_, Nov 04 2013

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Last modified June 7 18:53 EDT 2024. Contains 373206 sequences. (Running on oeis4.)