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Numbers n such that sigma(4n+1)=6n.
0

%I #8 Mar 30 2012 18:38:51

%S 1,8,65,96,224,560,6734,11648,3588320,67969536,290575208,1629860960,

%T 4758938912,10769110400

%N Numbers n such that sigma(4n+1)=6n.

%K nonn

%O 1,2

%A _Benoit Cloitre_, Feb 04 2002

%E a(9)-a(14) from _Donovan Johnson_, Feb 01 2009