Number of plane trees with n nodes where the sequence of branches directly under any given node is a chain of multisets.
A319379
Number of plane trees with n nodes where the sequence of branches directly under any given node is a chain of multisets.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =9a(5) =19a(6) =43a(7) =93a(8) =207a(9) =452a(10) =997a(11) =2176a(12) =4776a(13) =10418a(14) =22781a(15) =49674a(16) =108421
External references
- oeis: A319379