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 A337311 #11 Aug 22 2020 19:56:17 %S A337311 0,0,1,-1,1,-1,-1,0,-2,2,-2,1,-1,-1,0,-2,2,-3,3,-3,3,-2,1,1,0,4,-3,4, %T A337311 -2,-2,-1,-3,3,-5,2,-2,-2,-1,-3,2,-7,2,-5,1,0,-2,3,-7,1,-3,-9,2,-9,2, %U A337311 -6,1,-5,-1,-1,-2,3,-9,1,-2,-8,4,-5,3,-2,-1,1,-2,4 %N A337311 List of successive x-coordinates in the acute angled Babylonian spiral. %Y A337311 Cf. A337293, A256111, A337312. %K A337311 sign %O A337311 1,9 %A A337311 _John Bailey_, Aug 22 2020