Number of functions on n labeled nodes whose representation as a digraph has two components.

A065456

Number of functions on n labeled nodes whose representation as a digraph has two components.

Terms

    a(0) =0a(1) =1a(2) =9a(3) =95a(4) =1220a(5) =18694a(6) =334369a(7) =6852460a(8) =158479488a(9) =4085349936a(10) =116193701393

External references