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A044427 Numbers n such that string 9,5 occurs in the base 10 representation of n but not of n-1. 0

%I #7 Sep 24 2019 11:25:42

%S 95,195,295,395,495,595,695,795,895,950,995,1095,1195,1295,1395,1495,

%T 1595,1695,1795,1895,1950,1995,2095,2195,2295,2395,2495,2595,2695,

%U 2795,2895,2950,2995,3095,3195,3295,3395,3495,3595

%N Numbers n such that string 9,5 occurs in the base 10 representation of n but not of n-1.

%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n],{9,5}]>0,1,0],{n,3600}],{0,1}][[All,2]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 24 2019 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified May 29 04:26 EDT 2024. Contains 372921 sequences. (Running on oeis4.)