Number of rooted ordered trees with n internal nodes where each node has out-degree 0, 2, or 6.
A380761
Number of rooted ordered trees with n internal nodes where each node has out-degree 0, 2, or 6.
Terms
- a(0) =1a(1) =2a(2) =16a(3) =192a(4) =2720a(5) =42224a(6) =694848a(7) =11907648a(8) =210240256a(9) =3797869056a(10) =69859601920
External references
- oeis: A380761