Number of binary trees of specific height (h)
138595
How many types of distinct Binary Tree can be formed with a height of h?
73575
Number of pairs of strings satisfying the given condition
150719
All nonisomorphic trees of order $n$
71978
Tower of Hanoi: Recursive Algorithm
17868
How to calculate the number of possible connected simple graphs with $n$ labelled vertices
142809
Trees whose complement is also a tree
148376
Proving that a Binary Tree of $n$ nodes has a height of at least $\log(n)$.
122063
Tree-planting problem with pagoda functions (from PROMYS)
91229
Complexity of counting the number of triangles of a graph
130648
Binary Hamming code - number of words weight $i$
45510
Number of vertices present in all maximum matchings
13767
Number of nodes in binary tree given number of leaves
44013
How many trees over ${1,2,3,...n}$ with conditions
85023
Permutation of n objects with restriction of adjacent pairs
60682
Counting nodes in a tree in Java
74839
Catalan numbers: bijection between applications of a binary operator and Dyck words.
89277
In Order Successor in Binary Search Tree