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Smallest nonnegative value taken on by nx^2 - 16y^2 for an infinite number of integer pairs (x, y).
0

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

%S 0,2,3,0,4,6,7,8,0,10,11,12,4,14,15,0,1,2,3,4,5,6,7,8,0,10,11,12,4,14,

%T 12,16,17,18,19,0,4,8,12,16,1,24,3,28,5,14,23,32,0,16,32,4,4,8,39,40,

%U 41,16,11,44,4,46,47,0,1,2,3,4,5,6,7,8,1,10,11,12,13,14,15,16,0,16,19

%N Smallest nonnegative value taken on by nx^2 - 16y^2 for an infinite number of integer pairs (x, y).

%K nonn

%O 1,2

%A _David W. Wilson_