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Numbers n such that string 2,2 occurs in the base 3 representation of n but not of n+1.
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%I #5 Mar 30 2012 18:56:44

%S 8,17,26,35,44,53,62,80,89,98,107,116,125,134,143,161,170,179,188,197,

%T 206,242,251,260,269,278,287,296,305,323,332,341,350,359,368,377,386,

%U 404,413,422,431,440,449,485,494,503,512,521

%N Numbers n such that string 2,2 occurs in the base 3 representation of n but not of n+1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_