A044333 Numbers n such that string 0,1 occurs in the base 10 representation of n but not of n-1.

101, 201, 301, 401, 501, 601, 701, 801, 901, 1001, 1010, 1101, 1201, 1301, 1401, 1501, 1601, 1701, 1801, 1901, 2001, 2010, 2101, 2201, 2301, 2401, 2501, 2601, 2701, 2801, 2901, 3001, 3010, 3101, 3201, 3301, 3401, 3501

Offset

1,1

Links

Table of n, a(n) for n=1..38.

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {0, 1}]>0, 1, 0], {n, 4000}], {0, 1}][[All, 2]] (* Harvey P. Dale, Jul 27 2022 *)

Crossrefs

Sequence in context: A177032 A141913 A100775 * A044714 A158128 A162670

Adjacent sequences: A044330 A044331 A044332 * A044334 A044335 A044336

Keyword

nonn,base

Author

Clark Kimberling

Status

approved