Number of totally transitive rooted trees with n leaves.

A318187

Number of totally transitive rooted trees with n leaves.

Terms

    a(0) =2a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =62a(7) =122a(8) =234a(9) =451a(10) =857a(11) =1630a(12) =3068a(13) =5772a(14) =10778a(15) =20093a(16) =37259

External references