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A044397 Numbers n such that string 6,5 occurs in the base 10 representation of n but not of n-1. 0
65, 165, 265, 365, 465, 565, 650, 665, 765, 865, 965, 1065, 1165, 1265, 1365, 1465, 1565, 1650, 1665, 1765, 1865, 1965, 2065, 2165, 2265, 2365, 2465, 2565, 2650, 2665, 2765, 2865, 2965, 3065, 3165, 3265, 3365, 3465, 3565 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..39.

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {6, 5}]>0, 1, 0], {n, 4000}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 05 2019 *)

CROSSREFS

Sequence in context: A044697 A350209 A326157 * A044778 A054902 A255244

Adjacent sequences:  A044394 A044395 A044396 * A044398 A044399 A044400

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 2 03:47 EDT 2022. Contains 354985 sequences. (Running on oeis4.)