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 A129907 #17 Oct 29 2023 09:45:40 %S A129907 1,2,3,7,683,10729 %N A129907 a(n) is the greatest prime factor of A072446(n). %C A129907 The references are about the notion of connectivity spaces (in French, "espaces connectifs"). %H A129907 S. Dugowson, <a href="http://msh.revues.org/document3908.html">Les frontieres dialectiques</a>, Mathematiques et sciences humaines, no. 177, Spring 2007. %H A129907 S. Dugowson, <a href="http://arXiv.org/abs/0707.2542">Representation of finite connective spaces</a>, arXiv:0707.2542 [math.GN], 2007. %F A129907 a(n) = A006530(A072446(n)). %Y A129907 Cf. A006530, A072446. %K A129907 nonn,less,more %O A129907 1,2 %A A129907 S. Dugowson (dugowson(AT)ext.jussieu.fr), Jun 08 2007 %E A129907 Edited and a(6) corrected by _Andrew Howroyd_, Oct 28 2023