Number of minimal ordered covers of a labeled n-set.

A049056

Number of minimal ordered covers of a labeled n-set.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =19a(4) =207a(5) =3691a(6) =103263a(7) =4415419a(8) =283796607a(9) =27094905451

External references