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%I
%S 6,12,28,70,88,108,168,220,348,496,550,580,726,748,798,910,918,952,
%T 1032,1120,1200,1240,1504,1644,1672,1840,1888,2140,2205,2392,2470,
%U 2472,2814,3190,3222,3580,3804,4030,4648,4732,4758,5032,5670,5830
%N Values of n such that sigma(n)-2n (the abundance of n) is a (positive) square.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Abundance.html">Abundance</a>
%K nonn
%O 1,1
%A _Eric W. Weisstein_, Jun 30 2005