A393579 a(n) = floor(g*n) mod 3, where g = (1+sqrt(5))/2 is the golden ratio.

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

Offset

1,5

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Mathematica

Mod[Floor[GoldenRatio*Range[100]], 3] (* Paolo Xausa, Mar 22 2026 *)

Crossrefs

Cf. A001622, A085002.

Sequence in context: A247977 A359239 A143232 * A329981 A096030 A025815

Adjacent sequences: A393576 A393577 A393578 * A393580 A393581 A393582

Keyword

nonn

Author

Jeffrey Shallit, Mar 22 2026

Status

approved