A166946 a(n) = 1 if n is a rounded multiple of phi (1.618033989...), the larger golden ratio value; else a(n) = 0.

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

Offset

0,1

Comments

The characteristic function of A007067.

Links

Table of n, a(n) for n=0..104.

Crossrefs

Cf. A001622, A007067, A003849.

Sequence in context: A309847 A266786 A272532 * A144612 A174208 A141687

Adjacent sequences: A166943 A166944 A166945 * A166947 A166948 A166949

Keyword

nonn

Author

Casey Mongoven, Oct 24 2009

Status

approved