[seqfan] A067081: All terms odd?
zak seidov
zakseidov at yahoo.com
Fri Oct 1 07:16:43 CEST 2010
A067081: Are all terms odd?
Thanks,
Zak
%S A067081 5,125,1253,1673,3127
%N A067081 ...sigma(n+1)=2*sigma(n).
%C A067081 ...odd values only(?)
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