A043868 Numbers n such that number of runs in the base 4 representation of n is congruent to 1 mod 10.

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

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