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 A343864 #29 Jul 01 2023 15:24:33 %S A343864 3,9,6,9,5,0,7,2,2,9,4,9,7,6,4,4,9,8,6,2,0,9,2,2,0,8,7,4,2,0,5,6,5,2, %T A343864 4,6,9,9,8,6,4,8,2,1,6,8,4,1,8,6,5,3,1,7,2,7,3,9,5,4,1,5,1,6,7,2,6,9, %U A343864 4,7,8,7,6,3,6,8,2,6,3,2,3,3,1,7,2,4,5,3,5,5,0,2,3 %N A343864 Decimal expansion of 12*sqrt(3)/(3+sqrt(5)). %C A343864 Surface area to volume ratio of an icosahedron with unit side length. %H A343864 Wikipedia, <a href="https://en.wikipedia.org/wiki/Surface-area-to-volume_ratio">Surface-area-to-volume ratio</a> %F A343864 3.9695072294976449862092208742056524... %t A343864 RealDigits[12 Sqrt[3]/(3 + Sqrt[5]), 10, 100] // Flatten %Y A343864 Cf. A343745. %K A343864 nonn,cons %O A343864 1,1 %A A343864 _Wesley Ivan Hurt_, May 03 2021