Number of endofunctions on [n] where the smallest cycle length equals 2.

A246189

Number of endofunctions on [n] where the smallest cycle length equals 2.

Terms

    a(0) =1a(1) =6a(2) =51a(3) =580a(4) =8265a(5) =141246a(6) =2810437a(7) =63748728a(8) =1622579985a(9) =45775778950

External references