REFERENCES
- Ralph P. Boas, “Some Remarkable Sequences of Integers,” Chapter 3, Mathematical Plums, edited by Ross Honsberger, Mathematical Association of America, Washington, D.C., 1979.
- James C. Frauenthal and Thomas L. Saaty, “Foresight-Insight-Hindsight,” Chapter 1, Modules in Applied Mathematics, Volume 3, edited by William F. Lucas, Springer-Verlag, New York, 1983.
- Harvey M. Wagner, Principles of Operations Research, Prentice-Hall, 1969.