Number of n-node unlabeled connected digraphs whose underlying graphs are mating graphs, cf. A006024.

A102598

Number of n-node unlabeled connected digraphs whose underlying graphs are mating graphs, cf. A006024.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =102a(4) =5034a(5) =886456

External references