Number of ordered multigraphs on n labeled edges (without loops).
A020558
Number of ordered multigraphs on n labeled edges (without loops).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =27a(4) =274a(5) =3874a(6) =71995a(7) =1682448a(8) =47840813a(9) =1615315141a(10) =63566760077
External references
- oeis: A020558