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 A179640 #4 Mar 31 2012 12:38:37 %S A179640 8,2,1,5,6,6,7,9,2,8,9,7,2,2,5,6,7,7,3,4,8,6,9,3,5,7,5,8,0,3,5,6,3,0, %T A179640 9,7,5,4,4,2,8,9,3,8,7,1,7,9,9,1,2,5,6,8,4,4,1,6,3,7,0,8,7,9,9,6,8,6, %U A179640 1,7,8,0,5,6,1,6,9,6,6,3,7,0,3,8,6,7,3,9,4,4,1,7,2,7,2,6,9,8,9,9,2,7,7,4,7 %N A179640 Decimal expansion of the surface area of gyroelongated pentagonal pyramid with edge length 1. %C A179640 Gyroelongated pentagonal pyramid: 11 vertices, 25 edges, and 16 faces. %H A179640 Wolfram Alpha, <a href="http://www.wolframalpha.com/input/?i=Johnson+solid+11">Johnson solid 11</a> %F A179640 Digits of sqrt(5/2*(70+sqrt(5)+3*sqrt(75+30*sqrt(5))))/2. %e A179640 8.21566792897225677348693575803563097544289387179912568441637087996861... %t A179640 RealDigits[N[Sqrt[5/2*(70+Sqrt[5]+3*Sqrt[75+30*Sqrt[5]])]/2,200]] %Y A179640 Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449, A179450, A179451, A179452, A179552, A179553, A179554, A179587, A179588, A179589, A179590, A179591, A179592, A179593, A179637, A179638, A179639. %K A179640 cons,nonn,easy %O A179640 1,1 %A A179640 _Vladimir Joseph Stephan Orlovsky_, Jul 21 2010