Triangle read by rows: T(n,k) = number of rooted labeled trees with n nodes and height <= k, for n >= 1, 0 <= k <= n-1.
A236396
Triangle read by rows: T(n,k) = number of rooted labeled trees with n nodes and height <= k, for n >= 1, 0 <= k <= n-1.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =0a(4) =3a(5) =9a(6) =0a(7) =4a(8) =40a(9) =64a(10) =0a(11) =5a(12) =205a(13) =505a(14) =625a(15) =0a(16) =6a(17) =1176a(18) =4536a(19) =7056a(20) =7776a(21) =0a(22) =7a(23) =7399a(24) =46249a(25) =89929a(26) =112609a(27) =117649a(28) =0a(29) =8
External references
- oeis: A236396