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A043600 Numbers n such that base 4 representation has exactly 9 runs. 0
69905, 69906, 69907, 69912, 69913, 69915, 69916, 69917, 69918, 69921, 69922, 69923, 69924, 69926, 69927, 69932, 69933, 69934, 69937, 69938, 69939, 69940, 69942, 69943, 69944, 69945, 69947, 70020, 70022, 70023 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subset of A043876. [From R. J. Mathar, Oct 20 2008]

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

Select[Range[71000], Length[Split[IntegerDigits[#, 4]]]==9&] (* Harvey P. Dale, May 23 2017 *)

CROSSREFS

Sequence in context: A069919 A116502 A190934 * A043858 A043876 A224464

Adjacent sequences:  A043597 A043598 A043599 * A043601 A043602 A043603

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 28 09:13 EST 2021. Contains 341695 sequences. (Running on oeis4.)