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

A245409

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

Terms

    a(0) =1a(1) =1a(2) =4a(3) =27a(4) =256a(5) =3120a(6) =46476a(7) =818251a(8) =16623552a(9) =382775625a(10) =9851207860a(11) =280231042751

External references