Number of rooted trees with n nodes such that for each inner node no more than k subtrees corresponding to its children have exactly k nodes.

A248890

Number of rooted trees with n nodes such that for each inner node no more than k subtrees corresponding to its children have exactly k nodes.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =1a(4) =2a(5) =4a(6) =8a(7) =16a(8) =34a(9) =75a(10) =166a(11) =374a(12) =849a(13) =1952a(14) =4522a(15) =10566a(16) =24840a(17) =58760a(18) =139693a(19) =333702a(20) =800412a(21) =1927207a(22) =4655997a(23) =11283835a(24) =27423930a(25) =66825194a(26) =163227234a(27) =399587270a(28) =980222058a(29) =2409181633

External references