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 A048665 #11 Dec 05 2018 16:07:32 %S A048665 1,8,84,936,10810,127632,1531180,18589840,227826873,2813450960, %T A048665 34963217388,436807761192,5482017092760,69070750692496, %U A048665 873243394317660,11073530439895728 %N A048665 Number of rooted 4-dimensional "polycubes" with n cells, with no symmetries removed. %H A048665 R. C. Schroeppel, <a href="http://www.experimentalmath.info/workshop2004/schroeppel-talk.pdf">A few mathematical experiments</a>, Experimental Mathematics Workshop, Oakland, 2004. %F A048665 a(n) = n * A151830(n). - _Andrew Howroyd_, Dec 05 2018 %Y A048665 Row 4 of A048790. %Y A048665 Cf. A048663, A151830. %K A048665 nonn %O A048665 1,2 %A A048665 _Dan Hoey_ %E A048665 a(10)-a(16) from _Andrew Howroyd_, Dec 05 2018