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A043868 Numbers n such that number of runs in the base 4 representation of n is congruent to 1 mod 10. 0
1, 2, 3, 5, 10, 15, 21, 42, 63, 85, 170, 255, 341, 682, 1023, 1365, 2730, 4095, 5461, 10922, 16383, 21845, 43690, 65535, 87381, 174762, 262143, 349525, 699050, 1048575, 1118481, 1118482, 1118483, 1118488, 1118489, 1118491 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..36.

MATHEMATICA

Select[Range[112*10^4], Mod[Length[Split[IntegerDigits[#, 4]]], 10]==1&] (* Harvey P. Dale, Nov 22 2018 *)

CROSSREFS

Sequence in context: A043844 A043851 A043859 * A048329 A252659 A004691

Adjacent sequences:  A043865 A043866 A043867 * A043869 A043870 A043871

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified April 11 07:54 EDT 2021. Contains 342886 sequences. (Running on oeis4.)