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A067810 Composite n such that sigma(2*n) < prime(n). 0

%I #5 Mar 30 2012 18:38:52

%S 25,26,32,34,35,38,44,46,49,50,51,52,55,56,57,58,62,64,65,68,69,70,74,

%T 75,76,77,78,80,81,82,85,86,87,88,91,92,93,94,95,98,99,100,102,104,

%U 106,110,111,112,114,115,116,117,118,119,121,122,123,124,125,128,129,130

%N Composite n such that sigma(2*n) < prime(n).

%K nonn

%O 1,1

%A _Benoit Cloitre_, Feb 07 2002

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Last modified April 25 09:13 EDT 2024. Contains 371967 sequences. (Running on oeis4.)