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 A340168 #8 Feb 28 2023 23:47:22
%S A340168 1,1,0,8,8,6,2,2,5,8,7,8,0,7,6,7,5,1,3,2,7,6,9,5,1,1,6,2,1,3,0,8,1,9,
%T A340168 2,9,2,6,4,5,2,6,6,1,2,6,9,6,3,5,6,9,2,2,4,3,6,2,9,4,3,1,4,1,8,4,4,7,
%U A340168 3,5,5,6,5,3,0,9,3,4,8,6,6,3,2,1,3,4,3,9,7,1,4,6,7,5,0,7,9,0,1,5,5,7,4,0,5
%N A340168 Decimal expansion of a constant related to the asymptotics of A004003.
%F A340168 Equals lim_{n->infinity} A004003(n) / ((sqrt(2)-1)^(2*n) * exp(4*G*n*(n+1)/Pi)), where G is the Catalan's constant A006752.
%F A340168 Equals 2*exp(G/Pi) / (1 + sqrt(2)), where G is Catalan's constant A006752.
%e A340168 1.1088622587807675132769511621308192926452661269635692243629431418447355653...
%t A340168 RealDigits[2*E^(Catalan/Pi)/(1 + Sqrt[2]), 10, 110][[1]]
%Y A340168 Cf. A004003, A007341, A007726, A065072, A127605, A340052.
%K A340168 nonn,cons
%O A340168 1,4
%A A340168 _Vaclav Kotesovec_, Dec 30 2020