%I
%S 1,8,50,288,1681,9801,57121,332928
%N A001653(n) - A046090(n).
%D L. J. Gerstein, Pythagorean triples and inner products, Math. Mag., 78 (2005), 205-213.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Mar 14 2006
