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 A033700 #9 Feb 20 2023 22:08:38 %S A033700 1,1,1,3,3,3,2,10,3,5,7,13,4 %N A033700 Number of connected transitive 4-valent (or quartic) graphs with n nodes. %D A033700 R. C. Read and R. J. Wilson, An Atlas of Graphs, Oxford, 1998. %Y A033700 Cf. A006820, A033301, A033483. %K A033700 nonn,nice %O A033700 5,4 %A A033700 Ronald C. Read %E A033700 a(16)-a(17) from _Sean A. Irvine_, Jul 13 2020