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 A308478 #16 Aug 08 2019 02:59:15 %S A308478 2,8,44,347,3636 %N A308478 a(n) = sum of the dimensions of the rational spans of all connected chord diagrams with n chords and any number m of link components, modulo all instances of the 4T-relation. %C A308478 These numbers were generated as part of a proof of the dimensionality of the larger space of disconnected chord diagrams modulo 4T, and the code/combinatorics are provided in the paper. %C A308478 At the time, computation was an issue but now it's likely the methods could be used to generate more terms. No generating function is known. %H A308478 Bryan Bischof, Roman Kogan, David Yetter, <a href="https://arxiv.org/abs/0801.3253">On a basis for the framed link vector space spanned by chord diagrams</a>, arXiv: 0801.3253 [math.QA], 2008. Also Journal of Knot Theory and Its Ramifications. Vol. 18, No. 12, pp. 1663-1680 (2009). %K A308478 nonn,bref,more %O A308478 1,1 %A A308478 _Bryan Bischof_, May 29 2019