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A043580 Numbers n such that base 2 representation has exactly 13 runs. 1
5461, 9557, 10581, 10837, 10901, 10917, 10921, 10923, 10925, 10933, 10965, 11093, 11605, 13653, 17749, 18773, 19029, 19093, 19109, 19113, 19115, 19117, 19125, 19157, 19285, 19797, 20821, 21077, 21141, 21157, 21161 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

MATHEMATICA

Select[Range[22000], Length[Split[IntegerDigits[#, 2]]]==13&] (* Harvey P. Dale, May 04 2019 *)

CROSSREFS

Sequence in context: A259514 A217255 A247715 * A104111 A028548 A069311

Adjacent sequences:  A043577 A043578 A043579 * A043581 A043582 A043583

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 8 01:56 EDT 2020. Contains 333312 sequences. (Running on oeis4.)