A103989 Decimal expansion of Integral_{x>=0} exp(-x^2)*erf(x)^3/x dx.

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

Offset

0,1

Links

Table of n, a(n) for n=0..101.

Eric Weisstein's World of Mathematics, Hypercube Line Picking

Example

0.256502341...

Mathematica

Clear[f]; f[n_] := f[n] = RealDigits[ NIntegrate[ Exp[-x^2]*Erf[x]^3/x, {x, 0, n}, WorkingPrecision -> 110], 10, 102] // First; f[10]; f[n = 20]; While[f[n] != f[n-10], n = n+10]; f[n] (* Jean-François Alcover, Feb 07 2013 *)

Crossrefs

Sequence in context: A343933 A262152 A016636 * A239049 A161017 A198231

Adjacent sequences: A103986 A103987 A103988 * A103990 A103991 A103992

Keyword

nonn,cons

Author

Eric W. Weisstein, Feb 24 2005

Status

approved