A049259 - OEIS

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

%S 4,2,5,4,0,14,5,8,11,10,4,8,7,6,5,4,3,2,1,0,20,20,5,20,20,6,5,20,20,

%T 20,4,20,3,14,5,20,20,20,5,20,4,12,5,4,0,20,5,20,19,20,5,20,3,14,5,20,

%U 20,20,1,20,4,2,17,16,15,14,5,12,11,10,4,8,7,6,5,4,3,2,1,0,20,20,5,20,20

%N Smallest nonnegative value taken on by 20x^2 - ny^2 for an infinite number of integer pairs (x, y).

%K nonn

%O 1,1

%A _David W. Wilson_