A044653 - OEIS

%I #7 Aug 07 2022 16:27:38

%S 21,102,183,197,264,345,426,507,588,669,750,831,912,926,993,1074,1155,

%T 1236,1317,1398,1479,1560,1641,1655,1781,1803,1884,1965,2046,2127,

%U 2208,2289,2370,2384,2451,2532,2613,2694,2775,2856

%N Numbers n such that string 2,3 occurs in the base 9 representation of n but not of n+1.

%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n,9],{2,3}]>0,1,0],{n,3000}],{1,0}][[All,1]] (* _Harvey P. Dale_, Aug 07 2022 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_