The polynomial giving the number of colorings with colors of a structure defined by a permutation group.
Pólya Polynomial
See also
Permutation Group, Pólya Enumeration TheoremExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Pólya Polynomial." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PolyaPolynomial.html