CONCRETE MATHEMATICS Ronald L.Graham AT&T Bell Laboratories Donald E.Knuth Stanford University Oren Patashnik Stanford University ADDISON-WESLEY PUBLISHING COMPANY Reading.Massachusetts Menlo Park.California New York Don Mills,Ontario Wokingham,England Amsterdam Bonn Sydney Singapore Tokyo Madrid San JuanCONCRETE MATHEMATICS Ronald L. Graham AT&T Bell Laboratories Donald E. Knuth Stanford University Oren Patashnik Stanford University A ADDISON-WESLEY PUBLISHING COMPANY Reading, Massachusetts Menlo Park, California New York Don Mills, Ontario Wokingham, England Amsterdam Bonn Sydney Singapore Tokyo Madrid San Juan