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 A144603 #4 May 30 2025 13:34:37 %S A144603 0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0, %T A144603 0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1, %U A144603 0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0 %N A144603 Christoffel word of slope 5/11. %F A144603 a(n) = a(n-16). - _R. J. Mathar_, May 30 2025 %F A144603 G.f.: -x^3*(1+x+x^2+x^3+x^4)*(x^8-x^7+x^5-x^4+x^3-x+1) / ( (x-1)*(1+x)*(1+x^2)*(1+x^4)*(1+x^8) ). - _R. J. Mathar_, May 30 2025 %Y A144603 See A144595 for further details. %K A144603 nonn,easy %O A144603 0,1 %A A144603 _N. J. A. Sloane_, Jan 13 2009