The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A103988 Decimal expansion of Integral_{x>=0} exp(-2x^2)*erf(x)^2 dx. 1
 1, 3, 5, 5, 7, 5, 3, 1, 1, 6, 2, 2, 2, 0, 2, 6, 0, 1, 6, 0, 8, 2, 5, 4, 5, 5, 1, 0, 2, 2, 1, 5, 0, 5, 4, 6, 0, 7, 2, 6, 1, 5, 5, 8, 9, 3, 9, 7, 5, 2, 2, 9, 6, 4, 9, 9, 3, 1, 2, 5, 0, 5, 0, 0, 3, 3, 7, 0, 0, 9, 2, 7, 8, 8, 0, 7, 2, 9, 4, 7, 2, 5, 9, 2, 2, 1, 8, 3, 9, 7, 1, 0, 1, 2, 6, 4, 7, 5, 3, 7, 5, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..101. Eric Weisstein's World of Mathematics, Hypercube Line Picking EXAMPLE 0.13557531162220260160825455102215054607261558939752296499312505003370092788... MAPLE evalf(Integrate(exp(-2*x^2)*erf(x)^2, x = 0..infinity), 120); # Vaclav Kotesovec, Nov 02 2019 MATHEMATICA Clear[f]; f[n_] := f[n] = RealDigits[ NIntegrate[Exp[-2 x^2]*Erf[x]^2, {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: A179858 A141501 A277776 * A285204 A086269 A057952 Adjacent sequences: A103985 A103986 A103987 * A103989 A103990 A103991 KEYWORD nonn,cons AUTHOR Eric W. Weisstein, Feb 23 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 6 01:58 EST 2023. Contains 367594 sequences. (Running on oeis4.)