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 A351350 #9 Feb 19 2022 14:20:58 %S A351350 2,1,1,1,1,10,1,1,1,17,1,1,1,1,13,1,1,1,37,1 %N A351350 Denominator of the square of the radius of the largest circle, centered at the origin, around which a Racetrack car (using Moore neighborhood) can run a full lap in n steps. %C A351350 The car starts and finishes on the positive x-axis, as in A351041. %C A351350 The square of the radius of the largest circle is a rational number, because the squared distance from the origin to a line segment between two points with integer coordinates is always rational. %H A351350 Pontus von Brömssen, <a href="/A351349/a351349.svg">Some optimal Racetrack trajectories for A351349/A351350</a>. %H A351350 Wikipedia, <a href="https://en.wikipedia.org/wiki/Racetrack_(game)">Racetrack</a> %e A351350 See A351349 for examples. %Y A351350 Cf. A351041, A351349 (numerators), A351352. %K A351350 nonn,frac,more %O A351350 6,1 %A A351350 _Pontus von Brömssen_, Feb 09 2022