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 A179589 #6 Aug 21 2023 12:38:08 %S A179589 1,3,9,8,9,6,6,3,2,5,9,6,5,9,0,6,7,0,2,0,3,1,5,4,0,5,3,9,4,3,1,9,9,8, %T A179589 7,6,4,6,7,3,5,2,2,5,6,3,8,6,6,2,3,8,8,7,9,9,3,0,9,3,6,3,2,3,1,5,0,3, %U A179589 7,3,5,9,2,0,3,7,9,8,0,2,9,9,1,1,4,8,2,8,3,0,0,5,0,1,4,4,6,8,0,3,0,4,2,9,4 %N A179589 Decimal expansion of the circumradius of square cupola with edge length 1. %C A179589 Square cupola: 12 vertices, 20 edges, and 10 faces. %H A179589 Wolfram Alpha, <a href="http://www.wolframalpha.com/input/?i=Johnson+solid+4">Johnson solid 4</a> %H A179589 <a href="/index/Al#algebraic_04">Index entries for algebraic numbers, degree 4</a> %F A179589 Digits of sqrt(5+2*sqrt(2))/2. %e A179589 1.398966325965906702031540539431998764673522563866238879930... %t A179589 RealDigits[N[Sqrt[5+2*Sqrt[2]]/2,200]] %Y A179589 Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449, A179450, A179451, A179452, A179552, A179553, A019881, A179587, A179588. %K A179589 nonn,cons,easy %O A179589 1,2 %A A179589 _Vladimir Joseph Stephan Orlovsky_, Jul 19 2010