%I #5 Mar 30 2012 18:56:46
%S 57,138,219,300,381,462,521,543,624,705,786,867,948,1029,1110,1191,
%T 1250,1272,1353,1434,1515,1596,1677,1758,1839,1920,1979,2001,2082,
%U 2163,2244,2325,2406,2487,2568,2649,2708,2730,2811
%N Numbers n such that string 6,3 occurs in the base 9 representation of n but not of n+1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_