Number of rooted directed trees on n nodes with a red root.

A097627

Number of rooted directed trees on n nodes with a red root.

Terms

    a(0) =1a(1) =2a(2) =21a(3) =280a(4) =5465a(5) =134556a(6) =4051453a(7) =143810416a(8) =5884797969a(9) =272701388980

External references