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 A136286 #6 Aug 25 2017 23:38:20 %S A136286 0,0,0,0,256,15381,815867,47818683,3291232419,270038320842, %T A136286 26366544332292,3038643940889754,409107090075310746, %U A136286 63681176297547793493,11350054578585382645977,2296208875599834678215827,523217007018082627351544259,133356820608541419593405364486 %N A136286 Number of graphs on n labeled nodes with maximal degree exactly 4. %D A136286 D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.4. %F A136286 Equals A136283 - A136282. %Y A136286 Cf. A000085 (degree at most 1), A136281-A136285. %K A136286 nonn %O A136286 1,5 %A A136286 _Don Knuth_, Mar 31 2008 %E A136286 a(13)-a(18) from _Andrew Howroyd_, Aug 25 2017