A327219 a(n) = [(2n+4)r] - [(n+4)r] - [nr], where [ ] = floor and r = (1+sqrt(5))/2.

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

Offset

0

Links

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

Mathematica

r = (1+Sqrt[5])/2; z = 200;
t = Table[Floor[(2 n + 4) r] - Floor[(n*r + 4 r)] - Floor[n*r], {n, 0, z}] (* fixed by Jianing Song, Sep 30 2019 *)

Crossrefs

The positions of 0's and 1's in {a(n) : n > 0} are given by A327220 and A327221.

Sequence in context: A285133 A011658 A135461 * A274950 A093383 A093384

Adjacent sequences: A327216 A327217 A327218 * A327220 A327221 A327222

Keyword

nonn,easy

Author

Clark Kimberling, Sep 02 2019

Status

approved