%I A109510
%S A109510 6,12,28,70,88,108,168,220,348,496,550,580,726,748,798,910,918,952,1032,
%T A109510 1120,1200,1240,1504,1644,1672,1840,1888,2140,2205,2392,2470,2472,2814,
%U A109510 3190,3222,3580,3804,4030,4648,4732,4758,5032,5670,5830
%N A109510 Values of n such that sigma(n)-2n (the abundance of n) is a (positive) 
               square.
%H A109510 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Abundance.html">Abundance</a>
%Y A109510 Sequence in context: A057341 A068412 A146005 this_sequence A034715 A079390 
               A124679
%Y A109510 Adjacent sequences: A109507 A109508 A109509 this_sequence A109511 A109512 
               A109513
%K A109510 nonn
%O A109510 1,1
%A A109510 Eric Weisstein (eric(AT)weisstein.com), Jun 30, 2005