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 A006404 M1385 #18 Jan 16 2025 16:20:46 %S A006404 1,1,2,5,10,29,96,339,1320,5473 %N A006404 Number of sensed 2-connected maps with n edges and without faces of degree 2. %D A006404 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A006404 Timothy R. Walsh, <a href="http://dx.doi.org/10.1137/0604018">Generating nonisomorphic maps without storing them</a>, SIAM J. Algebraic Discrete Methods 4 (1983), no. 2, 161-178. %Y A006404 Cf. A006384, A006402, A006405 (unsensed). %K A006404 nonn,more %O A006404 3,3 %A A006404 _N. J. A. Sloane_ %E A006404 a(11) and a(12) from _Sean A. Irvine_, Apr 02 2017