OFFSET
0,2
LINKS
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
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Feb 23 2005
STATUS
approved