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 A309144 #14 Jul 27 2019 11:19:19
%S A309144 0,0,0,1,0,0,0,0,0,1,1,1,0,0,0,0,0,1,1,1,0,1,0,0,1,0,0,2,1,1,1,1,0,0,
%T A309144 0,1,0,0,1,1,0,1,1,1,0,0,0,1,0,1,1,2,0,1,0,1,0,1,2,0,1,0,0,0,0,0,1,0,
%U A309144 1,2,0,1,0,0,0,2,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,1
%N A309144 Rank of elliptic curve y^2 = x^3 + (n^2 + 6*n -3)*x^2 - 16*n*x.
%H A309144 Seiichi Manyama, <a href="/A309144/b309144.txt">Table of n, a(n) for n = 1..1000</a>
%H A309144 Allan J. MacLeod, <a href="http://web.archive.org/web/20100125135648/http://maths.paisley.ac.uk/allanm/ECRNT/knight/knintro.htm">Knight's Problem</a>
%o A309144 (PARI) {a(n) = ellanalyticrank(ellinit([0, n^2+6*n-3, 0, -16*n, 0]))[1]}
%Y A309144 Cf. A102535.
%K A309144 nonn
%O A309144 1,28
%A A309144 _Seiichi Manyama_, Jul 14 2019