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 A179637 #6 Mar 31 2012 12:38:37 %S A179637 2,2,3,4,7,2,0,0,2,6,5,3,9,4,1,2,8,2,7,6,7,9,8,4,1,4,1,5,8,1,8,8,6,1, %T A179637 3,0,7,3,8,1,8,0,1,3,5,1,3,4,3,1,6,2,2,6,1,2,9,7,9,9,7,6,3,1,6,7,1,0, %U A179637 2,0,4,7,1,6,7,6,3,5,2,4,7,7,6,8,3,3,9,9,7,2,1,9,3,8,6,4,1,1,4,7,0,3,3,2,0 %N A179637 Decimal expansion of the surface area of pentagonal rotunda with edge length 1. %C A179637 Pentagonal rotunda: 20 vertices, 35 edges, and 17 faces. %H A179637 Wolfram Alpha, <a href="http://www.wolframalpha.com/input/?i=Johnson+solid+6">Johnson solid 6</a> %F A179637 Digits of sqrt(5*(145+58*sqrt(5)+2*sqrt(30*(65+29*sqrt(5)))))/2. %e A179637 22.3472002653941282767984141581886130738180135134316226129799763167102... %t A179637 RealDigits[N[Sqrt[5*(145+58*Sqrt[5]+2*Sqrt[30*(65+29*Sqrt[5])])]/2,200]] %Y A179637 Cf. A001622, A010527, A102208, A179290, A179292, A179294, A179449-A179452, A179552-A179554, A179587-A179593. %K A179637 cons,nonn,easy %O A179637 2,1 %A A179637 _Vladimir Joseph Stephan Orlovsky_, Jul 21 2010 %E A179637 Offset corrected by _R. J. Mathar_, Aug 15 2010