Number of rooted labeled trees of height at most 2.
A052512
Number of rooted labeled trees of height at most 2.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =9a(4) =40a(5) =205a(6) =1176a(7) =7399a(8) =50576a(9) =372537a(10) =2936080a(11) =24617131a(12) =218521128a(13) =2045278261a(14) =20112821288a(15) =207162957135
External references
- oeis: A052512