Square array read by antidiagonals giving number of binary trees of height n with k points on the n-th level (n,k>0).
A065329
Square array read by antidiagonals giving number of binary trees of height n with k points on the n-th level (n,k>0).
Terms
- a(0) =1a(1) =0a(2) =2a(3) =0a(4) =1a(5) =8a(6) =0a(7) =0a(8) =8a(9) =80a(10) =0a(11) =0a(12) =4a(13) =144a(14) =4160a(15) =0a(16) =0a(17) =1a(18) =168a(19) =13888a(20) =5632640a(21) =0a(22) =0a(23) =0a(24) =138a(25) =31776a(26) =36109952a(28) =0a(29) =0a(30) =0
External references
- oeis: A065329