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 A179591 #6 Feb 11 2025 15:17:46 %S A179591 1,6,5,7,9,7,4,9,7,5,2,9,8,8,1,9,7,0,4,6,0,9,4,0,4,6,3,4,4,3,6,3,2,2, %T A179591 4,6,1,8,1,0,2,6,3,6,0,9,6,1,1,7,6,5,5,1,8,1,8,7,4,7,4,4,0,5,7,2,7,5, %U A179591 9,4,3,4,8,4,5,8,2,6,9,3,5,7,3,8,2,0,3,5,8,2,7,9,0,0,1,9,1,2,0,4,8,2,6,8,1 %N A179591 Decimal expansion of the surface area of pentagonal cupola with edge length 1. %C A179591 Pentagonal cupola: 15 vertices, 25 edges, and 12 faces. %H A179591 Wolfram Alpha, <a href="http://www.wolframalpha.com/input/?i=Johnson+solid+5">Johnson solid 5</a> %H A179591 <a href="/index/Al#algebraic_08">Index entries for algebraic numbers, degree 8</a>. %F A179591 Digits of (20+sqrt(10*(80+31*sqrt(5)+sqrt(2175+930*sqrt(5)))))/4. %e A179591 16.5797497529881970460940463443632246181026360961176551818747440... %t A179591 RealDigits[N[(20+Sqrt[10*(80+31*Sqrt[5]+Sqrt[2175+930*Sqrt[5]])])/4,200]] %Y A179591 Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449, A179450, A179451, A179452, A179552, A179553, A019881, A179587, A179588, A179589, A179590. %K A179591 nonn,cons,easy %O A179591 2,2 %A A179591 _Vladimir Joseph Stephan Orlovsky_, Jul 19 2010