The number of unordered binary trees that contain n distinct subtrees.
A255841
The number of unordered binary trees that contain n distinct subtrees.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =25a(4) =137a(5) =945a(6) =7927a(7) =78731a(8) =906705a(9) =11908357a(10) =175978520a(11) =2893866042a(12) =52467157456
External references
- oeis: A255841