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 A144598 #8 May 28 2025 15:40:31 %S A144598 0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1, %T A144598 0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1, %U A144598 0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0 %N A144598 Christoffel word of slope 5/7. %C A144598 The path is on the slope after 0, 12, 24, 36, 48,... (A008594) steps, which gives the C-finite recurrence. - _R. J. Mathar_, May 28 2025 %F A144598 a(n) = a(n-12). - _R. J. Mathar_, May 28 2025 %F A144598 G.f.: -x^2*(1+x^2+x^5+x^7+x^9) / ( (x-1)*(1+x+x^2)*(1+x)*(1-x+x^2)*(1+x^2)*(x^4-x^2+1) ). - _R. J. Mathar_, May 28 2025 %Y A144598 See A144595 for further details. %K A144598 nonn,easy %O A144598 0,1 %A A144598 _N. J. A. Sloane_, Jan 13 2009