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 A386544 #9 Jul 28 2025 10:53:48 %S A386544 9,2,0,1,1,8,0,0,5,1,4,3,7,0,4,6,0,9,4,7,4,9,7,9,9,8,3,5,0,1,1,6,7,1, %T A386544 2,0,8,1,5,9,3,3,4,6,2,6,1,6,1,5,4,3,0,2,1,5,5,1,3,5,3,2,2,1,3,4,4,3, %U A386544 7,4,3,3,1,1,6,8,2,6,2,2,4,1,2,3,6,1,1,1,0,9 %N A386544 Decimal expansion of the volume of a triaugmented truncated dodecahedron with unit edges. %C A386544 The triaugmented truncated dodecahedron is Johnson solid J_71. %H A386544 Paolo Xausa, <a href="/A386544/b386544.txt">Table of n, a(n) for n = 2..10000</a> %H A386544 Wikipedia, <a href="https://en.wikipedia.org/wiki/Triaugmented_truncated_dodecahedron">Triaugmented truncated dodecahedron</a>. %F A386544 Equals (7/12)*(75 + 37*sqrt(5)) = (7/12)*(75 + 37*A002163). %F A386544 Equals A377695 + 3*A179590. %F A386544 Equals the largest root of 36*x^2 - 3150*x - 14945. %e A386544 92.01180051437046094749799835011671208159334626... %t A386544 First[RealDigits[7/12*(75 + 37*Sqrt[5]), 10, 100]] (* or *) %t A386544 First[RealDigits[PolyhedronData["J71", "Volume"], 10, 100]] %Y A386544 Cf. A386545 (surface area). %Y A386544 Cf. A002163, A179590, A377695, A385506, A385804, A386464, A386466. %K A386544 nonn,cons,easy %O A386544 2,1 %A A386544 _Paolo Xausa_, Jul 28 2025