%I #5 Mar 30 2012 18:56:44
%S 81,181,281,381,481,581,681,781,810,881,981,1081,1181,1281,1381,1481,
%T 1581,1681,1781,1810,1881,1981,2081,2181,2281,2381,2481,2581,2681,
%U 2781,2810,2881,2981,3081,3181,3281,3381,3481,3581
%N Numbers n such that string 8,1 occurs in the base 10 representation of n but not of n-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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