Number of binary phylogenetic trees with n labels.
A006681
Number of binary phylogenetic trees with n labels.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =85a(4) =646a(5) =6664a(6) =86731a(7) =1354630a(8) =24607816a(9) =509000899a(10) =11802833296a(11) =303129872500
External references
- oeis: A006681