A044555 - OEIS

%I #5 Mar 30 2012 18:56:45

%S 36,85,134,183,232,258,281,330,379,428,477,526,575,601,624,673,722,

%T 771,820,869,918,944,967,1016,1065,1114,1163,1212,1261,1287,1310,1359,

%U 1408,1457,1506,1555,1604,1630,1653,1702,1751,1812

%N Numbers n such that string 5,1 occurs in the base 7 representation of n but not of n+1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_