Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n labeled edges.
A099712
Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n labeled edges.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =30a(4) =338a(5) =5169a(6) =101251a(7) =2446806a(8) =71043973a(9) =2429762734a(10) =96364601877
External references
- oeis: A099712