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 A332299 #19 Aug 20 2020 21:19:37
%S A332299 0,0,0,-1,-1,-1,0,1,1,2,3,3,4,5,5,5,4,4,4,5,6,6,7,8,8,9,10,10,10,9,9,
%T A332299 9,10,10,10,9,8,8,7,6,6,6,7,7,7,6,6,6,7,8,8,9,10,10,10,9,9,9,10,10,10,
%U A332299 9,8,8,7,6,6,5,4,4,4,5,5,5,4,3,3,2,1,1,0,-1
%N A332299 a(n) is the Y-coordinate of the n-th point of the Fibonacci word fractal. Sequence A332298 gives X-coordinates.
%H A332299 Rémy Sigrist, <a href="/A332299/b332299.txt">Table of n, a(n) for n = 0..10946</a>
%H A332299 <a href="/index/Con#coordinates_2D_curves">Index entries for sequences related to coordinates of 2D curves</a>
%o A332299 (PARI) A003849(n)=my(k=2); while(fibonacci(k)<=n, k++); while(n>1, while(fibonacci(k--)>n, ); n-=fibonacci(k)); n==1
%o A332299 { z=0; d=I; for (n=0, 81, print1 (imag(z) ", "); if (A003849(n)==0, if (n%2==0, d/=I, d*=I);); z+=d) }
%Y A332299 Cf. A003849, A265318, A332298 (X-coordinates and additional comments).
%K A332299 sign,look
%O A332299 0,10
%A A332299 _Rémy Sigrist_, Feb 09 2020