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 A243313 #19 Feb 16 2025 08:33:22 %S A243313 1,0,9,6,3,7,6,3,1,7,1,7,7,3,1,2,8,0,4,0,7,5,9,3,1,1,0,6,9,1,3,5,2,3, %T A243313 7,9,0,1,9,6,5,3,8,4,9,6,9,4,3,5,1,5,5,1,8,2,9,7,5,5,2,4,9,6,5,2,9,5, %U A243313 3,1,9,4,0,0,1,5,4,1,4,0,4,0,6,1,9,6,2,8,8,8,1,8,9,8,0,3,4,5,6,9,7,9,4,4 %N A243313 Decimal expansion of a 5-dimensional analog of DeVicci's tesseract constant. %C A243313 This constant is the edge length of the largest 3-dimensional cube that can be inscribed within a unit 5-dimensional cube. %C A243313 Also, the smallest positive root in x^4 - 22*x^2 + 25 = 0. %D A243313 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 8.14 DeVicci's tesseract constant, p. 525. %H A243313 Chai Wah Wu, <a href="/A243313/b243313.txt">Table of n, a(n) for n = 1..10001</a> %H A243313 Eric Weisstein's MathWorld, <a href="https://mathworld.wolfram.com/PrinceRupertsCube.html">Prince Rupert's Cube</a>. %F A243313 Equals sqrt(11-4*sqrt(6)) = 2*sqrt(2)-sqrt(3). %e A243313 1.0963763171773128040759311069135237901965384969435155182975524965... %t A243313 RealDigits[Sqrt[11-4*Sqrt[6]], 10, 104] // First %o A243313 (PARI) 2*sqrt(2)-sqrt(3) \\ _Stefano Spezia_, Dec 24 2024 %Y A243313 Cf. A093577, A243309. %K A243313 nonn,cons,easy %O A243313 1,3 %A A243313 _Jean-François Alcover_, Jun 03 2014