A327222 a(n) = [(2n+4)r] - [nr+4r] - [nr], where [ ] = floor and r = sqrt(2).

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

Offset

0

Links

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

Mathematica

r = Sqrt[2]; z = 300;
t = Table[Floor[(2 n + 4) r] - Floor[(n*r + 4 r)] - Floor[n*r], {n, 0, z}]

Crossrefs

The positions of 0's and 1's in {a(n) : n > 0} are given by A327223 and A327224.

Sequence in context: A091225 A175337 A285031 * A286063 A339824 A278587

Adjacent sequences: A327219 A327220 A327221 * A327223 A327224 A327225

Keyword

nonn,easy

Author

Clark Kimberling, Sep 02 2019

Status

approved