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 A089797 #11 Sep 23 2019 09:44:11 %S A089797 1,1,1,2,3,4,6,9,15,19,30,39,63,79,126,159,255 %N A089797 Number of rational knots and links with unknotting (unlinking) number U=1. %H A089797 Jablan S., <a href="http://www.mi.sanu.ac.rs/vismath/sl/index.html">Ordering Knots</a> %H A089797 Jablan S. and Sazdanovic R., <a href="http://www.mi.sanu.ac.rs/vismath/linknot/index.html">LinKnot</a> %H A089797 P. Kohn, <a href="https://doi.org/10.1090/S0002-9939-1991-1079893-8">Two-bridge links with unlinking number one</a>, Proc. Amer. Math. Soc. 113 (1991), 1135-1147. %H A089797 A. Stoimenow, <a href="https://arxiv.org/abs/math/0210174">Generating Functions, Fibonacci Numbers and Rational Knots</a>, arXiv:math/0210174 [math.GT], 2002. %Y A089797 Cf. A078477. %K A089797 nonn,more %O A089797 2,4 %A A089797 Slavik Jablan and Radmila Sazdanovic, Jan 09 2004