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A044273 Numbers n such that string 2,4 occurs in the base 9 representation of n but not of n-1. 0

%I

%S 22,103,184,198,265,346,427,508,589,670,751,832,913,927,994,1075,1156,

%T 1237,1318,1399,1480,1561,1642,1656,1723,1782,1885,1966,2047,2128,

%U 2209,2290,2371,2385,2452,2533,2614,2695,2776,2857

%N Numbers n such that string 2,4 occurs in the base 9 representation of n but not of n-1.

%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n,9],{2,4}]>0,1,0],{n,3000}],{0,1}][[All,2]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Jun 21 2021 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified February 6 22:49 EST 2023. Contains 360111 sequences. (Running on oeis4.)