Humbert polynomials

In mathematics, the Humbert polynomials π$λ n,m$(x) are a generalization of Pincherle polynomials introduced by given by the generating function


 * $$\displaystyle (1-mxt+t^m)^{-\lambda}=\sum^\infty

_{n=0}\pi^\lambda_{n,m}(x)t^n$$

.