A044800 - OEIS

%I #5 Mar 30 2012 18:56:47

%S 87,187,287,387,487,587,687,787,879,887,987,1087,1187,1287,1387,1487,

%T 1587,1687,1787,1879,1887,1987,2087,2187,2287,2387,2487,2587,2687,

%U 2787,2879,2887,2987,3087,3187,3287,3387,3487,3587

%N Numbers n such that string 8,7 occurs in the base 10 representation of n but not of n+1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_