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%I #5 Mar 30 2012 18:56:42
%S 25,50,75,100,125,150,175,200,225,250,275,300,325,350,375,400,425,450,
%T 475,500,525,550,575,600,625,675,700,725,750,775,800,825,850,875,900,
%U 925,950,975,1000,1025,1050,1075,1100,1125,1150
%N Numbers n such that string 0,0 occurs in the base 5 representation of n but not of n-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_