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 A377796 #6 Nov 08 2024 11:38:18 %S A377796 1,7,4,2,9,2,0,3,0,3,4,2,3,2,3,9,2,0,8,8,2,9,3,2,1,0,7,5,2,6,2,8,3,4, %T A377796 6,5,7,2,8,4,8,5,2,2,1,9,2,0,4,4,5,1,9,1,6,5,2,8,4,8,8,9,6,8,9,4,8,0, %U A377796 3,8,8,9,1,6,2,1,1,6,7,2,8,6,6,6,0,7,2,1,9,7 %N A377796 Decimal expansion of the surface area of a truncated icosidodecahedron (great rhombicosidodecahedron) with unit edge length. %H A377796 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GreatRhombicosidodecahedron.html">Great Rhombicosidodecahedron</a>. %H A377796 Wikipedia, <a href="https://en.wikipedia.org/wiki/Truncated_icosidodecahedron">Truncated icosidodecahedron</a>. %F A377796 Equals 30*(1 + sqrt(3) + sqrt(5 + 2*sqrt(5))) = 30*(A090388 + A019970). %e A377796 174.292030342323920882932107526283465728485221920... %t A377796 First[RealDigits[30*(1 + Sqrt[3] + Sqrt[5 + Sqrt[20]]), 10, 100]] (* or *) %t A377796 First[RealDigits[PolyhedronData["TruncatedIcosidodecahedron", "SurfaceArea"], 10, 100]] %Y A377796 Cf. A377797 (volume), A377798 (circumradius), A377799 (midradius). %Y A377796 Cf. A090388, A019970. %K A377796 nonn,cons,easy %O A377796 3,2 %A A377796 _Paolo Xausa_, Nov 07 2024