THE USE OF THE CHROMATIC POLYNOMIAL OF A GRAPH IN ENUMERATIVE COMBINATORICS
CORNEL BERCEANU Vasile Alecsandri" University of Bacău, Faculty of Sciences, Department of Mathe-matics, Informatics and Educational Sciences, Calea Mărăşeşti 157, Bacău 600115, Romania, e-mail: cornel_berceanu@yahoo.com
The chromatic polynomial of a graph on the set N={1,2,...,n} is used as an instrument to find the number of possible partitions of N under some particular restraints and the number of functions on N with special properties.