A043858 Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 9.

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

Offset

1,1

Links

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

Mathematica

Select[Range[80000], Mod[Length[Split[IntegerDigits[#, 4]]], 9]==0&] (* Harvey P. Dale, Oct 01 2018 *)

Crossrefs

Sequence in context: A116502 A190934 A043600 * A043876 A224464 A233987

Adjacent sequences: A043855 A043856 A043857 * A043859 A043860 A043861

Keyword

nonn,base

Author

Clark Kimberling

Status

approved