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 A263176 #9 Jan 07 2021 07:29:14
%S A263176 1,5,8,9,2,4,1,4,7,1,8,0,1,6,5,0,3,5,0,5,9,9,5,2,0,0,1,7,3,7,3,2,1,4,
%T A263176 0,8,5,5,4,7,4,6,5,9,9,9,5,5,8,3,3,6,9,6,8,2,1,8,2,4,8,0,8,0,2,7,1,7,
%U A263176 8,2,0,5,5,7,3,2,6,5,8,1,8,3,7,5,5,0,4,1,8,3,9,5,8,7,2,6,8,9,3,4,1,6,6,0,0,2
%N A263176 Decimal expansion of a constant related to A263136 (negated).
%F A263176 Integral_{x=0..infinity} exp(-3*x)/(x*(1 - exp(-4*x))^2) - 1/(16*x^3) - 1/(16*x^2) + 5/(96*x*exp(x)) dx.
%F A263176 A263176 + A263177 = log(Gamma(1/4))/2 - Zeta'(-1)/4 - 2*log(2)/3 - log(Pi)/4 = -0.062914043561495455491893116973161914641792581828767341125... . - _Vaclav Kotesovec_, Oct 12 2015
%e A263176 -0.158924147180165035059952001737321408554746599955833696821824808027...
%t A263176 NIntegrate[E^(-3*x)/(1-E^(-4*x))^2/x - 1/(16*x^3) - 1/(16*x^2) + 5*E^(-x)/(96*x), {x, 0, Infinity}, WorkingPrecision -> 120, MaxRecursion -> 100, PrecisionGoal -> 110]
%Y A263176 Cf. A263136, A263177.
%K A263176 nonn,cons
%O A263176 0,2
%A A263176 _Vaclav Kotesovec_, Oct 11 2015