Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n loops and edges.
A099713
Consider the family of multigraphs enriched by the species of arborescences. Sequence gives number of those multigraphs with n loops and edges.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =103a(4) =1383a(5) =24505a(6) =545354a(7) =14751666a(8) =473719878a(9) =17740486031a(10) =763890459761
External references
- oeis: A099713