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

%S 17,33,49,65,68,81,97,113,129,132,145,161,177,193,196,209,225,241,257,

%T 260,272,289,305,321,324,337,353,369,385,388,401,417,433,449,452,465,

%U 481,497,513,516,528,545,561,577,580,593,609

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

%K nonn,base

%O 1,1

%A _Clark Kimberling_