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A044336 Numbers n such that string 0,4 occurs in the base 10 representation of n but not of n-1. 0
104, 204, 304, 404, 504, 604, 704, 804, 904, 1004, 1040, 1104, 1204, 1304, 1404, 1504, 1604, 1704, 1804, 1904, 2004, 2040, 2104, 2204, 2304, 2404, 2504, 2604, 2704, 2804, 2904, 3004, 3040, 3104, 3204, 3304, 3404, 3504 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {0, 4}]>0, 1, 0], {n, 4000}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 05 2016 *)

CROSSREFS

Sequence in context: A259767 A234261 A260288 * A044717 A235990 A270300

Adjacent sequences:  A044333 A044334 A044335 * A044337 A044338 A044339

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 18 19:58 EDT 2021. Contains 344002 sequences. (Running on oeis4.)