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%I #5 Mar 30 2012 18:56:42
%S 9,45,54,81,117,153,189,225,261,270,297,324,369,405,441,477,486,513,
%T 549,585,621,657,693,702,729,765,801,837,873,909,918,945,981,1017,
%U 1053,1089,1125,1134,1161,1197,1233,1269,1305,1341,1350
%N Numbers n such that string 1,3 occurs in the base 6 representation of n but not of n-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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