A327256 a(n) = floor(2*n*r) - 2*floor(n*r), where r = sqrt(8).

0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0

Offset

0

Links

Clark Kimberling, Table of n, a(n) for n = 0..10000

Formula

a(n) = floor(2*n*r) - 2*floor(n*r), where r = sqrt(8).

Mathematica

r = Sqrt[8]; z = 300;
t = Table[Floor[2 n r] - 2 Floor[n*r], {n, 0, z}]

Crossrefs

The positions of 0's and 1's in {a(n) : n > 0} are given by A327257 and A327258.

Sequence in context: A105384 A288694 A292077 * A327177 A366255 A057212

Adjacent sequences: A327253 A327254 A327255 * A327257 A327258 A327259

Keyword

nonn,easy

Author

Clark Kimberling, Sep 03 2019

Status

approved