A044393 - OEIS

A044393

Numbers n such that string 6,1 occurs in the base 10 representation of n but not of n-1.

%I #5 Mar 30 2012 18:56:44

%S 61,161,261,361,461,561,610,661,761,861,961,1061,1161,1261,1361,1461,

%T 1561,1610,1661,1761,1861,1961,2061,2161,2261,2361,2461,2561,2610,

%U 2661,2761,2861,2961,3061,3161,3261,3361,3461,3561

%N Numbers n such that string 6,1 occurs in the base 10 representation of n but not of n-1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_