A144605 Christoffel word of slope 7/11.

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

Offset

0,1

Links

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

Formula

a(n) = a(n-18). - R. J. Mathar, May 30 2025

G.f.: -x^2*(1+x^3+x^5+x^8+x^10+x^13+x^15) / ( (x-1)*(1+x+x^2)*(1+x^3+x^6)*(1+x)*(1-x+x^2)*(1-x^3+x^6) ). - R. J. Mathar, May 30 2025

Crossrefs

See A144595 for further details.

Sequence in context: A188432 A282317 A212126 * A349297 A349317 A154103

Adjacent sequences: A144602 A144603 A144604 * A144606 A144607 A144608

Keyword

nonn,easy

Author

N. J. A. Sloane, Jan 13 2009

Status

approved