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 A052441 #15 Feb 16 2025 08:32:42 %S A052441 0,0,0,0,18,0,129,1390,29987,1015304,59286916,5764417079 %N A052441 Number of simple unlabeled n-node graphs with 5 center nodes. %H A052441 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GraphCenter.html">Graph Center</a> %Y A052441 Column 5 of A294525 for n > 5. %Y A052441 Cf. A052437, A052438, A052439, A052440. %K A052441 nonn,more %O A052441 1,5 %A A052441 _Eric W. Weisstein_ %E A052441 a(8)-a(10) from _Andrew Howroyd_, Nov 02 2017 %E A052441 a(11)-a(12) from _Sean A. Irvine_, Nov 23 2021