A044334 - OEIS

%I #7 Sep 10 2025 15:35:43

%S 102,202,302,402,502,602,702,802,902,1002,1020,1102,1202,1302,1402,

%T 1502,1602,1702,1802,1902,2002,2020,2102,2202,2302,2402,2502,2602,

%U 2702,2802,2902,3002,3020,3102,3202,3302,3402,3502

%N Numbers n such that string 0,2 occurs in the base 10 representation of n but not of n-1.

%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n,10],{0,2}]>0,1,0],{n,4000}],{0,1}][[;;,2]] (* _Harvey P. Dale_, Sep 10 2025 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_