%N Surfaces of cuboids with integer sides and main diagonal.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Cuboid.html">Cuboid.</a>
%e 88 is the surface of the cuboid of sides 8,4,1 which has main diagonal = 9.
%Y Cf. A005767, A118899, A118901.
%A _Giovanni Resta_, May 05 2006