Number of acyclic digraphs (or DAGs) with n labeled nodes.

A003024

Number of acyclic digraphs (or DAGs) with n labeled nodes.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =25a(4) =543a(5) =29281a(6) =3781503a(7) =1138779265a(8) =783702329343

External references