Triangle read by rows: T(n,k) is the number of binary trees with n edges and jump-length equal to k (n >= 0, 0 <= k <= n-2).

A127532

Triangle read by rows: T(n,k) is the number of binary trees with n edges and jump-length equal to k (n >= 0, 0 <= k <= n-2).

Terms

    a(0) =1a(1) =2a(2) =5a(3) =12a(4) =2a(5) =29a(6) =9a(7) =4a(8) =70a(9) =32a(10) =22a(11) =8a(12) =169a(13) =102a(14) =86a(15) =56a(16) =16a(17) =408a(18) =306a(19) =296a(20) =244a(21) =144a(22) =32a(23) =985a(24) =883a(25) =949a(26) =901a(27) =712a(28) =368a(29) =64

External references