A097270 - OEIS

%I #4 Mar 30 2012 17:29:19

%S 3,7,9,11,12,15,16,19,21,23,24,27,28,31,33,35,36,39,43,44,47,48,49,51,

%T 55,56,57,59,60,63,64,67,69,71,75,76,77,79,81,83,84,87,88,91,92,93,95,

%U 96,99,103,105,107,108,111,112,115,119,120,121,123,124,127,129,131,132

%N Numbers that are the difference of two nonzero squares but not the sum of two nonzero squares.

%C Intersection of A024352 (difference of squares) and complement of A000404 (sum of squares).

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SumofSquaresFunction.html">Sum of Squares Function.</a>

%Y Cf. A000404, A024352, A097268-A097271.

%K nonn

%O 1,1

%A _Ray Chandler_, Aug 19 2004