Sheffer sequence
= Sheffer sequence
{wiki=Sheffer_sequence}
The Sheffer sequence refers to a specific type of sequence of polynomials that can be used in the context of combinatorics and algebra. In particular, it is associated with generating functions and is useful in the study of combinatorial structures. More formally, the Sheffer sequence is a sequence of polynomials \\( \\\{ P_n(x) \\\} \\) such that there is an exponential generating function associated with it.