This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A144601 #4 May 30 2025 13:33:07 %S A144601 0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0, %T A144601 0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0, %U A144601 0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0 %N A144601 Christoffel word of slope 3/11. %F A144601 a(n) = a(n-14). - _R. J. Mathar_, May 30 2025 %F A144601 G.f.: -x^4*(1+x^5+x^9) / ( (x-1)*(1+x^6+x^5+x^4+x^3+x^2+x)*(1+x)*(1-x+x^2-x^3+x^4-x^5+x^6) ). - _R. J. Mathar_, May 30 2025 %Y A144601 See A144595 for further details. %Y A144601 Different from A105563. %K A144601 nonn,easy %O A144601 0,1 %A A144601 _N. J. A. Sloane_, Jan 13 2009