Number of digraphs with unlabeled (non-isolated) nodes and n labeled edges.

A014505

Number of digraphs with unlabeled (non-isolated) nodes and n labeled edges.

Terms

    a(0) =1a(1) =1a(2) =6a(3) =68a(4) =1206a(5) =29982a(6) =981476a(7) =40515568a(8) =2044492988a(9) =123175320988

External references