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 A052452 #24 Feb 16 2025 08:32:42 %S A052452 0,0,0,1,4,30,301,4985,142276,7269487,655015612,103031645470, %T A052452 28250197044039 %N A052452 Number of n-node simple graphs having clique number 4. %C A052452 Also, number of n-node simple graphs having independence number 4. - _Andrew Howroyd_, Oct 31 2017 %H A052452 Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial Graph Theory</a> %H A052452 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/CliqueNumber.html">Clique Number</a> %Y A052452 Column 4 of A263341. %Y A052452 Cf. A052450, A052451, A052453, A077392, A077393, A077394. %K A052452 nonn,more %O A052452 1,5 %A A052452 _Eric W. Weisstein_ %E A052452 2 more terms from _Eric W. Weisstein_, Nov 03 2002 %E A052452 a(10) from _Keith Briggs_, Mar 15 2006 %E A052452 a(11) from _Michael Sollami_, Jan 29 2012 %E A052452 a(12) from _Michael Sollami_, Mar 26 2012 %E A052452 a(13) from _Brendan McKay_, May 07 2018