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A044567 Numbers n such that string 6,6 occurs in the base 7 representation of n but not of n+1. 1
48, 97, 146, 195, 244, 293, 342, 391, 440, 489, 538, 587, 636, 685, 734, 783, 832, 881, 930, 979, 1028, 1077, 1126, 1175, 1224, 1273, 1322, 1371, 1420, 1469, 1518, 1567, 1616, 1665, 1714, 1763, 1812, 1861, 1910, 1959, 2008, 2057, 2106, 2155, 2204, 2253, 2302 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Tanya Khovanova, Non Recursions

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 7], {6, 6}]>0, 1, 0], {n, 2500}], {1, 0}][[All, 1]] (* Harvey P. Dale, Aug 20 2021 *)

CROSSREFS

Cf. A157362, A010727 [From Vincenzo Librandi, Mar 12 2009]

Sequence in context: A043418 A031486 A044186 * A070258 A260248 A260001

Adjacent sequences:  A044564 A044565 A044566 * A044568 A044569 A044570

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

EXTENSIONS

Incorrect Mathematica program deleted by Harvey P. Dale, Aug 20 2021

STATUS

approved

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Last modified October 27 02:00 EDT 2021. Contains 348270 sequences. (Running on oeis4.)