A044467 - OEIS

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

%S 9,34,49,59,84,109,134,159,174,184,209,249,259,284,299,309,334,359,

%T 384,409,424,434,459,484,509,534,549,559,584,609,634,659,674,684,709,

%U 734,759,784,799,809,834,874,884,909,924,934,959

%N Numbers n such that string 1,4 occurs in the base 5 representation of n but not of n+1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_