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 A343745 #40 Jul 01 2023 15:18:36 %S A343745 2,6,9,4,1,6,7,8,5,9,4,7,7,5,1,2,2,3,4,6,5,1,6,7,0,9,1,0,7,8,5,1,6,0, %T A343745 7,2,5,4,7,5,2,7,4,8,9,3,9,2,6,5,0,1,1,1,6,3,6,6,8,7,1,8,0,5,0,1,2,8, %U A343745 4,5,3,3,8,8,7,4,1,2,4,9,5,9,5,7,8,5,8,3,4,6,5,0,5,6 %N A343745 Decimal expansion of 12*sqrt(25+10*sqrt(5))/(15+7*sqrt(5)). %C A343745 Surface area to volume ratio of a dodecahedron with unit side length. %H A343745 Wikipedia, <a href="https://en.wikipedia.org/wiki/Surface-area-to-volume_ratio">Surface-area-to-volume ratio</a> %e A343745 2.694167859477512234651670... %t A343745 RealDigits[12 Sqrt[25 + 10 Sqrt[5]]/(15 + 7 Sqrt[5]), 10, 100] // Flatten %Y A343745 Cf. A343864. %K A343745 nonn,cons %O A343745 1,1 %A A343745 _Wesley Ivan Hurt_, May 02 2021