Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n labeled edges.
A099708
Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n labeled edges.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =60a(4) =854a(5) =16029a(6) =378871a(7) =10926690a(8) =375538541a(9) =15097900582a(10) =699359781567
External references
- oeis: A099708