Number of directed 4-multigraphs with loops on n nodes.
A053516
Number of directed 4-multigraphs with loops on n nodes.
Terms
- a(0) =5a(1) =325a(2) =327125a(3) =6360324375
External references
- oeis: A053516
A053516
Number of directed 4-multigraphs with loops on n nodes.