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 A371824 #18 Apr 15 2024 07:33:15
%S A371824 2,2,6,4,6,1,7,3,9,5,0,4,3,1,5,0,7,4,4,2,9,1,1,8,8,9,9,0,3,1,3,9,9,2,
%T A371824 6,0,1,3,9,8,3,2,7,0,9,2,6,5,0,6,7,5,0,9,0,4,8,1,2,2,8,7,8,7,5,0,6,2,
%U A371824 4,0,8,5,5,4,2,5,1,0,5,8,0,2,9,2,2,4,9,9,8,3,4,7,4,8,4,0,0,7,2,0,1,4,5,4,1,4,6,0,7,6,5
%N A371824 Decimal expansion of Pi^(1/2)*Gamma(1/10)/(5*Gamma(3/5)).
%C A371824 Constants from generalized Pi integrals: the case of n=10.
%H A371824 Takayuki Tatekawa, <a href="/A371824/b371824.txt">Table of n, a(n) for n = 1..10001</a>
%F A371824 Equals 2*Integral_{x=0..1} dx/sqrt(1-x^10).
%F A371824 Equals phi * Gamma(1/5) * Gamma(2/5)^2 / (2^(6/5) * sqrt(5) * Pi), where phi = A001622 is the golden ratio. - _Vaclav Kotesovec_, Apr 07 2024
%e A371824 2.264617395043150744291188990313...
%t A371824 RealDigits[2*Sqrt[Pi]/10*Gamma[1/10]/Gamma[3/5], 10, 5001][[1]]
%t A371824 RealDigits[GoldenRatio * Gamma[1/5] * Gamma[2/5]^2 / (2^(6/5) * Sqrt[5] * Pi), 10, 120][[1]] (* _Vaclav Kotesovec_, Apr 07 2024 *)
%Y A371824 Cf. A085565, A113477, A262427.
%K A371824 nonn,cons
%O A371824 1,1
%A A371824 _Takayuki Tatekawa_, Apr 07 2024