The rook polynomial of a board counts the number of ways of placing nonattacking
rooks on the board. In this paper, we describe how the properties of the
two-dimensional rook polynomials generalize to the rook polynomials of “boards” in
three and higher dimensions. We also define families of three-dimensional boards
which generalize the two-dimensional triangle boards and the boards representing the
problème des rencontres. The rook coefficients of these three-dimensional
boards are shown to be related to famous number sequences such as the
central factorial numbers, the number of Latin rectangles and the Genocchi
numbers.
Keywords
rook polynomial, three dimensions, central factorial
numbers, Genocchi numbers, problème des rencontres