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 A344171 #5 May 11 2021 18:21:14 %S A344171 2,6,8,3,2,8,1,5,7,2,9,9,9,7,4,7,6,3,5,6,9,1,0,0,8,4,0,2,4,7,7,5,3,1, %T A344171 4,8,2,5,2,8,7,4,2,0,3,1,5,3,3,8,3,0,8,6,9,1,2,5,0,7,6,6,9,4,4,9,2,6, %U A344171 2,5,1,1,0,7,6,5,3,6,5,8,7,9,2,9,7,2,9,7,2,9,0,0,5 %N A344171 Decimal expansion of 12*sqrt(5). %C A344171 Decimal expansion of the surface area of a rhombic triacontahedron with unit edge length. %H A344171 Wikipedia, <a href="https://en.wikipedia.org/wiki/Rhombic_triacontahedron">Rhombic triacontahedron</a> %e A344171 26.83281572999747635691008... %t A344171 RealDigits[12 Sqrt[5], 10, 100][[1]] // Flatten %Y A344171 Cf. A344172 (rhombic triacontahedron volume). %Y A344171 Cf. A344212 (rhombic triacontahedron midradius). %Y A344171 Cf. A019952 (rhombic triacontahedron radius of inscribed sphere). %K A344171 nonn,cons %O A344171 2,1 %A A344171 _Wesley Ivan Hurt_, May 10 2021