Triangle T(n,k) read by rows: number of labeled trees with n nodes and k leaves, n >= 2, 2 <= k <= n.
A055314
Triangle T(n,k) read by rows: number of labeled trees with n nodes and k leaves, n >= 2, 2 <= k <= n.
Terms
- a(0) =1a(1) =3a(2) =0a(3) =12a(4) =4a(5) =0a(6) =60a(7) =60a(8) =5a(9) =0a(10) =360a(11) =720a(12) =210a(13) =6a(14) =0a(15) =2520a(16) =8400a(17) =5250a(18) =630a(19) =7a(20) =0a(21) =20160a(22) =100800a(23) =109200a(24) =30240a(25) =1736a(26) =8a(27) =0a(28) =181440a(29) =1270080
External references
- oeis: A055314