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Smallest nonnegative value taken on by nx^2 - 8y^2 for an infinite number of integer pairs (x, y).
0

%I #4 Mar 30 2012 18:35:39

%S 1,0,3,4,5,6,7,0,1,2,3,4,5,6,7,8,9,0,4,8,12,14,7,16,8,2,4,20,8,22,23,

%T 0,1,2,3,4,5,6,7,8,8,10,4,4,13,14,15,16,17,0,4,8,5,16,20,24,1,2,3,28,

%U 8,6,7,32,8,34,4,36,37,38,39,0,1,2,3,4,5,6,7,8,1,2,3,12,8,6,15,16,1,10,19

%N Smallest nonnegative value taken on by nx^2 - 8y^2 for an infinite number of integer pairs (x, y).

%K nonn

%O 1,3

%A _David W. Wilson_