%I #5 Mar 30 2012 18:56:41

%S 16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,288,304,

%T 320,336,352,368,384,400,416,432,448,464,480,496,512,544,560,576,592,

%U 608,624,640,656,672,688,704,720,736,752,768,800

%N Numbers n such that string 0,0 occurs in the base 4 representation of n but not of n-1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_