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 A381689 #8 Mar 09 2025 17:57:41 %S A381689 8,3,9,0,0,3,8,0,5,1,0,4,5,3,4,2,8,0,3,6,8,8,9,2,3,4,3,3,4,7,9,3,6,1, %T A381689 5,6,7,5,0,7,8,0,3,4,7,5,0,9,8,9,8,5,5,8,5,8,1,0,8,1,1,8,4,8,9,1,2,8, %U A381689 8,3,0,4,2,5,0,3,8,3,4,8,0,8,4,0,6,3,1,9,5,7 %N A381689 Decimal expansion of the isoperimetric quotient of a truncated cuboctahedron (great rhombicuboctahedron). %C A381689 For the definition of isoperimetric quotient of a solid, references and links, see A381684. %H A381689 Paolo Xausa, <a href="/A381689/b381689.txt">Table of n, a(n) for n = 0..10000</a> %H A381689 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A381689 Equals 36*Pi*A377344^2/(A377343^3). %F A381689 Equals (Pi/12)*(11 + 7*sqrt(2))^2/((2 + sqrt(2) + sqrt(3))^3) = A019679*(11 + A010549)^2/((2 + A002193 + A002194)^3). %e A381689 0.8390038051045342803688923433479361567507803475... %t A381689 First[RealDigits[Pi/12*(11 + Sqrt[98])^2/(2 + Sqrt[2] + Sqrt[3])^3, 10, 100]] %Y A381689 Cf. A377343 (surface area), A377344 (volume). %Y A381689 Cf. A002193, A002194, A010549, A019679, A381684. %K A381689 nonn,cons,easy %O A381689 0,1 %A A381689 _Paolo Xausa_, Mar 06 2025