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 A135269 #13 Oct 11 2019 11:16:51 %S A135269 32,80,80,40,10,1 %N A135269 Row 5 of A038207. %C A135269 A penteract is a name for a five-dimensional hypercube with 32 vertices, 80 edges, 80 square faces, 40 cubic cells and 10 tesseract hypercells. %C A135269 The analogous sequence for the 4-dimensional cube would be 16, 32, 24, 8, 1. %H A135269 Wikipedia, <a href="https://en.wikipedia.org/wiki/Penteract">Penteract</a>. %p A135269 for i from 5 to 5 do seq(binomial(i, j)*2^(i-j), j = 0 .. i-1) od; %o A135269 (PARI) Vec((x+2)^5+O(x^6)) \\ _Joerg Arndt_, Apr 15 2013 %Y A135269 Cf. A038207. %K A135269 easy,fini,nonn,full %O A135269 0,1 %A A135269 _Zerinvary Lajos_, Dec 02 2007