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 A316334 #16 Sep 26 2019 11:03:13 %S A316334 0,7,5,1,11,8,3,2,12,6,4,9,25,17,10,29,23,15,37,30,21,16,24,19,27,33, %T A316334 13,20,42,32,26,18,14,34,41,31,22,28,38,46,55,68,36,47,39,50,59,69,56, %U A316334 66,80,45,57,48,40,51,43,54,63,35,64,52,44,75,62,53,65,102,87,73,60,70,81,67 %N A316334 Same as A316588, except number the squares starting at 0 rather than 1. %C A316334 a(n) = A316588(n+1)-1. %C A316334 See A316588 for further information. %H A316334 Daniël Karssen, <a href="/A316334/b316334.txt">Table of n, a(n) for n = 0..2401</a> %H A316334 N. J. A. Sloane and Brady Haran, <a href="https://www.youtube.com/watch?v=RGQe8waGJ4w">The Trapped Knight</a>, Numberphile video (2019) %Y A316334 Cf. A316588, A316336. %K A316334 nonn,fini,full,look %O A316334 0,2 %A A316334 _N. J. A. Sloane_, Jul 14 2018