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 A249523 #11 Feb 16 2025 08:33:24 %S A249523 2,3,7,0,5,1,0,2,5,2,0,9,6,0,0,2,8,6,5,8,5,5,6,9,5,0,4,6,7,6,4,0,8,5, %T A249523 7,1,9,4,0,1,7,6,9,1,6,2,3,6,9,7,8,1,3,1,8,6,3,2,3,8,2,6,4,5,8,9,6,8, %U A249523 3,1,0,6,2,3,1,4,3,1,6,5,3,1,1,8,4,1,4,5,3,3,9,9,3,8,5,7,3,3,6,9,4,3,3 %N A249523 Decimal expansion of rho(a,b), the cross-correlation coefficient of two sides of a random Gaussian triangle in three dimensions. %C A249523 Coordinates are independent normally distributed random variables with mean 0 and variance 1. %H A249523 Steven R. Finch, <a href="/A102519/a102519.pdf">Random Triangles</a>, January 21, 2010. [Cached copy, with permission of the author] %H A249523 Eric Weisstein's MathWorld, <a href="https://mathworld.wolfram.com/GaussianTrianglePicking.html">Gaussian Triangle Picking</a> %F A249523 rho = (-8 + 3*sqrt(3) + Pi)/(-8 + 3*Pi). %e A249523 0.237051025209600286585569504676408571940176916236978... %t A249523 rho = (-8 + 3*Sqrt[3] + Pi)/(-8 + 3*Pi); RealDigits[rho, 10, 103] // First %o A249523 (PARI) (sqrt(27)+Pi-8)/(3*Pi-8) \\ _Charles R Greathouse IV_, Apr 20 2016 %Y A249523 Cf. A102519, A102520, A102556, A102557, A102558, A102559, A249491, A249492. %K A249523 nonn,cons,easy %O A249523 0,1 %A A249523 _Jean-François Alcover_, Oct 31 2014