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 A386693 #7 Jul 31 2025 08:43:28 %S A386693 3,4,6,4,3,1,8,7,8,2,7,4,9,8,3,8,7,6,7,2,4,7,0,3,3,1,4,6,0,2,7,3,1,1, %T A386693 7,8,0,5,0,4,4,7,4,0,7,5,7,0,2,1,6,9,7,2,1,9,4,1,0,2,1,2,2,1,4,8,1,3, %U A386693 9,9,3,7,6,3,2,2,3,1,7,0,8,9,5,5,1,0,5,1,0,4 %N A386693 Decimal expansion of the volume of a tridiminished rhombicosidodecahedron with unit edges. %C A386693 The tridiminished rhombicosidodecahedron is Johnson solid J_83. %H A386693 Paolo Xausa, <a href="/A386693/b386693.txt">Table of n, a(n) for n = 2..10000</a> %H A386693 Wikipedia, <a href="https://en.wikipedia.org/wiki/Tridiminished_rhombicosidodecahedron">Tridiminished rhombicosidodecahedron</a>. %F A386693 Equals 35/2 + (23/3)*sqrt(5) = 35/2 + (23/3)*A002163. %F A386693 Equals A185093 - 3*A179590. %F A386693 Equals the largest root of 36*x^2 - 1260*x + 445. %e A386693 34.64318782749838767247033146027311780504474075702... %t A386693 First[RealDigits[35/2 + 23/3*Sqrt[5], 10, 100]] (* or *) %t A386693 First[RealDigits[PolyhedronData["J83", "Volume"], 10, 100]] %Y A386693 Cf. A386694 (surface area). %Y A386693 Cf. A002163, A179590, A185093, A386689, A386691. %K A386693 nonn,cons,easy %O A386693 2,1 %A A386693 _Paolo Xausa_, Jul 31 2025