👉 In mathematics, a "countree" is a type of tree that is defined by its nodes and edges. A node is a single point or feature in space, while an edge connects two nodes. The number of nodes on a countree can be calculated using the formula:
Number of nodes = (n - 1)
(n - 2)
where "n" represents the number of nodes on the tree.
For example, if there are 5 nodes on a countree,