%I #5 Mar 30 2012 18:56:42
%S 17,53,89,102,125,161,197,233,269,305,318,341,377,413,449,485,521,534,
%T 557,593,612,665,701,737,750,773,809,845,881,917,953,966,989,1025,
%U 1061,1097,1133,1169,1182,1205,1241,1277,1313,1349
%N Numbers n such that string 2,5 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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