Number of endofunctions on [n] such that no element has a preimage of cardinality six.

A245410

Number of endofunctions on [n] such that no element has a preimage of cardinality six.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =27a(4) =256a(5) =3125a(6) =46650a(7) =823249a(8) =16766240a(9) =387033417a(10) =9986221900a(11) =284803470611

External references