Triangle read by rows: T(n,k) = number of forests on n labeled nodes, where k is the maximum of the number of edges per tree (n>=1, 0<=k<=n-1).
A143911
Triangle read by rows: T(n,k) = number of forests on n labeled nodes, where k is the maximum of the number of edges per tree (n>=1, 0<=k<=n-1).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =1a(7) =9a(8) =12a(9) =16a(10) =1a(11) =25a(12) =60a(13) =80a(14) =125a(15) =1a(16) =75a(17) =330a(18) =480a(19) =750a(20) =1296a(21) =1a(22) =231a(23) =1680a(24) =3920a(25) =5250a(26) =9072a(27) =16807a(28) =1a(29) =763
External references
- oeis: A143911