Number of nonisomorphic multisets of fixed-point-free endofunctions on an n-set with n endofunctions.

A362902

Number of nonisomorphic multisets of fixed-point-free endofunctions on an n-set with n endofunctions.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =22a(4) =81015a(5) =78954264778

External references