Consider the family of multigraphs enriched by the species of trees. Sequence gives number of those multigraphs with n labeled edges.
A099716
Consider the family of multigraphs enriched by the species of trees. Sequence gives number of those multigraphs with n labeled edges.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =18a(4) =170a(5) =2244a(6) =38686a(7) =834594a(8) =21874433a(9) =681399298a(10) =24797467947
External references
- oeis: A099716