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 A129434 #10 Mar 22 2020 02:00:13 %S A129434 4,91,12398,8530044,20068725095,122563246940846,1657847267734501346, %T A129434 44557979504639651662163,2193071655191529316254072193, %U A129434 185380797361862371952777763438426 %N A129434 Number of isomorphism classes of connected 7-regular multigraphs of order 2n, loops allowed. %C A129434 Initial terms computed using software at http://users.cecs.anu.edu.au/~bdm/nauty/ %F A129434 Inverse Euler transform of A129435. - _Andrew Howroyd_, Mar 19 2020 %Y A129434 Column k=7 of A333397. %Y A129434 Cf. A129435, A129423, A005967, A085549, A129430, A129432, A129436. %K A129434 nonn %O A129434 1,1 %A A129434 _Brendan McKay_, Apr 15 2007 %E A129434 a(6)-a(10) added by _Andrew Howroyd_, Mar 21 2020