A327310 a(n) = floor(3*n*r) - 3*floor(n*r), where r = sqrt(8).

0, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 2, 2, 1, 1

Offset: 0

Author

Clark Kimberling, Sep 07 2019

Keywords

• nonn
• easy

Links

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

Crossrefs

The positions of 0's, 1's and 2's in {a(n) : n > 0} are given by A327311, A327312 and A327313.

Programs

Mathematica

r = Sqrt[8]; z = 300;
t = Table[Floor[3 n*r] - 3 Floor[n*r], {n, 0, z}]

Formula

a(n) = floor(3*n*r) - 3*floor(n*r), where r = sqrt(8).