Computation of the Landau function g(n)
 
 Download in the same directory the two files
the MAPLE code file
 proggden
 
and the data file
 superch2.m
Open a MAPLE sheet and type 
read proggden:
 
then type
functLandau(n,1):
for some n between 166 and 10^{15}. The meaning of the second argument
1 is explained in the MAPLE code file.
The method of computation of g(n) is described in the paper :
Marc Deléglise, Jean-Louis Nicolas et Paul Zimmermann.
Landau's function for one million billions, 
 Journal de Théorie des Nombres de Bordeaux, 
20, 2008, 625--671.
 gdenCohen.pdf 
ou  
 
http://archive.numdam.org/article/JTNB_2008__20_3_625_0.pdf  
ou  
 
http://arxiv.org/abs/0803.2160
ou encore
http://hal.archives-ouvertes.fr/hal-00264057