A044944 Runs of odd length in the base 4 representation of n.

1, 1, 1, 2, 0, 2, 2, 2, 2, 0, 2, 2, 2, 2, 0, 1, 3, 3, 3, 1, 1, 1, 1, 3, 3, 1, 3, 3, 3, 3, 1, 1, 3, 3, 3, 3, 1, 3, 3, 1, 1, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 3, 1, 3, 3, 3, 3, 1, 3, 1, 1, 1, 1, 2, 2, 2, 2, 4, 2, 4, 4, 4, 4, 2, 4, 4, 4, 4, 2, 0, 2, 2, 2, 2, 0, 2, 2, 2, 2, 0

Offset

1,4

Links

Table of n, a(n) for n=1..90.

Mathematica

Table[Count[Length/@Split[IntegerDigits[n, 4]], _?OddQ], {n, 100}] (* Harvey P. Dale, Mar 20 2023 *)

Crossrefs

Sequence in context: A000360 A023556 A238783 * A339432 A044945 A238005

Adjacent sequences: A044941 A044942 A044943 * A044945 A044946 A044947

Keyword

nonn,base

Author

Clark Kimberling

Status

approved