Number of rooted trees with n vertices that are not identity trees but whose non-leaf terminal subtrees are all different.
A324979
Number of rooted trees with n vertices that are not identity trees but whose non-leaf terminal subtrees are all different.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =2a(4) =5a(5) =12a(6) =29a(7) =70a(8) =168a(9) =402a(10) =959a(11) =2284a(12) =5434a(13) =12923a(14) =30727a(15) =73055a(16) =173678a(17) =412830
External references
- oeis: A324979