2. Acknowledgments

I enumerate here the tools and their creator which helped me to build this little software and this documentation. I thank them all. I cite only the creators, the people that have collaborated are as deserving as them.

• Linux (Linus Torvalds), for this beautiful jewel which made me buy a computer after 15 years of "I wait that technology stagnates".
• Perl (Larry Wall), for having discharged me from ``core dump''.
• CGI.pm (Lincoln Stein).
• Apache, (The Apache Group).
• SgmlTools (Cees de Groot).
• Ispell (Geoff Kuenning).
• Emacs (Richard M. Stallman).
• Xpaint (David Koblas).
• Mozilla (Netscape Communications Corporation).

Thanks to Stan Mulder for the quality of his Steve Gadd site and the inspiration he gave me involuntarily.

As well for Julien Cassaigne who, by his mathematical knowledge, gave me a remarkable method to estimate the generated sequences number. It is not the one I used because it needs a formal calculator, heavy to run on a web server.

A great thank for Nat Makarévitch who agreeded without any hesitation the presence of DrumPatterns on his excellent French site linux-france.