A348693 Decimal expansion of Integral_{x=0..oo} x*exp(-x)/(exp(x)+exp(-x)-1) dx.

3, 1, 1, 8, 2, 1, 1, 3, 1, 8, 6, 4, 3, 2, 6, 9, 8, 3, 2, 3, 8, 3, 2, 1, 3, 7, 7, 7, 7, 7, 0, 6, 5, 0, 6, 9, 0, 7, 0, 6, 9, 2, 4, 3, 5, 5, 4, 1, 1, 6, 4, 3, 2, 5, 5, 4, 3, 9, 8, 2, 0, 0, 8, 9, 9, 6, 8, 3, 0, 6, 6, 0, 0, 8, 8, 1, 8, 0, 1, 8, 4, 5, 9, 7, 3, 8, 0, 6, 9, 4, 6, 8, 7, 5, 3, 0, 9, 4, 4, 8, 8, 1, 7, 8, 1

Offset: 0

Author

Dumitru Damian, Oct 30 2021

Keywords

• nonn
• cons

Examples

			0.3118211318643269832...
		

Crossrefs

Cf. A001620.

Programs

Mathematica

RealDigits[Integrate[x*Exp[-x]/(Exp[x] + Exp[-x] - 1), {x, 0, Infinity}], 10, 105][[1]] (* Amiram Eldar, Oct 30 2021 *)

SageMath

RealField(45)(numerical_integral(x*exp(-x)/(exp(x)+exp(-x)-1), 0, +Infinity)[0])