Number of And/Or trees with n internal nodes that compute the Boolean value True.

A181914

Number of And/Or trees with n internal nodes that compute the Boolean value True.

Terms

    a(0) =2a(1) =16a(2) =168a(3) =1920a(4) =23360a(5) =296448a(6) =3880576a(7) =52015104a(8) =710360064a(9) =9849036800a(10) =138270871552

External references