Number of n-vertex binary trees that do not contain 0(0[0(0(00))]) as a subtree.

A365509

Number of n-vertex binary trees that do not contain 0(0[0(0(00))]) as a subtree.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =14a(4) =41a(5) =124a(6) =383a(7) =1202a(8) =3819a(9) =12255a(10) =39651a(11) =129190a(12) =423469a(13) =1395425

External references