Number of ordered multigraphs on n labeled edges (with loops).
A020559
Number of ordered multigraphs on n labeled edges (with loops).
Terms
- a(0) =1a(1) =2a(2) =11a(3) =97a(4) =1219a(5) =20385a(6) =433022a(7) =11296844a(8) =352866598a(9) =12938878499a(10) =548257129281
External references
- oeis: A020559