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 A343964 #17 Jul 01 2023 15:25:28 %S A343964 2,1,4,6,4,1,0,1,6,1,5,1,3,7,7,5,4,5,8,7,0,5,4,8,9,2,6,8,3,0,1,1,7,4, %T A343964 4,7,3,3,8,8,5,6,1,0,5,0,7,6,2,0,7,6,1,2,5,6,1,1,1,6,1,3,9,5,8,9,0,3, %U A343964 8,6,6,0,3,3,8,1,7,6,0,0,0,7,4,1,6,2,2,9,2,3,7,3,5,1,4,4,9,7,1,5 %N A343964 Decimal expansion of 18 + 2*sqrt(3). %C A343964 Surface area of a rhombicuboctahedron with unit edge length. %C A343964 Essentially the same sequence of digits as A176394 and A010469. - _R. J. Mathar_, May 07 2021 %H A343964 Wikipedia, <a href="https://en.wikipedia.org/wiki/Rhombicuboctahedron">Rhombicuboctahedron</a> %e A343964 21.464101615137754587054892683011744733885... %t A343964 RealDigits[N[18 + 2*Sqrt[3], 100]][[1]] (* _Wesley Ivan Hurt_, Nov 12 2022 *) %o A343964 (Magma) SetDefaultRealField(RealField(100)); 18+2*Sqrt(3); %Y A343964 Cf. A343965 (rhombicuboctahedron volume). %K A343964 nonn,cons %O A343964 1,1 %A A343964 _Wesley Ivan Hurt_, May 05 2021