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 A381687 #10 Mar 05 2025 09:25:43 %S A381687 7,5,3,3,6,6,6,2,5,1,6,6,1,5,6,8,8,2,2,2,9,4,8,9,4,1,4,5,7,8,7,5,1,3, %T A381687 6,1,9,2,7,7,0,4,5,9,5,8,6,6,2,4,9,7,1,9,8,1,3,1,4,0,1,0,3,4,9,3,7,8, %U A381687 4,1,9,0,6,3,4,1,2,3,5,8,1,5,8,5,1,1,7,3,2,1 %N A381687 Decimal expansion of the isoperimetric quotient of a truncated octahedron. %C A381687 For the definition of isoperimetric quotient of a solid, references and links, see A381684. %H A381687 Paolo Xausa, <a href="/A381687/b381687.txt">Table of n, a(n) for n = 0..10000</a> %H A381687 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A381687 Equals 36*Pi*A377342^2/(A377341^3). %F A381687 Equals 64*Pi/(3*(1 + 2*sqrt(3))^3) = 64*A000796/(3*(1 + A010469)^3). %e A381687 0.753366625166156882229489414578751361927704595866... %t A381687 First[RealDigits[64*Pi/(3*(1 + 2*Sqrt[3])^3), 10, 100]] %Y A381687 Cf. A377341 (surface area), A377342 (volume). %Y A381687 Cf. A000796, A010469, A381684. %K A381687 nonn,cons,easy %O A381687 0,1 %A A381687 _Paolo Xausa_, Mar 04 2025