In combinatorics, the Narayana numbers N ( n , k ) , n ∈ N + , 1 ≤ k ≤ n {\displaystyle \operatorname {N} (n,k),n\in \mathbb {N} ^{+},1\leq k\leq n} form a triangular array of natural numbers, called the Narayana triangle, that occur in various counting problems. They are named after Canadian mathematician T. V. Narayana (1930–1987).
In combinatorics, the Narayana numbers N ( n , k ) , n ∈ N + , 1 ≤ k ≤ n {\displaystyle \operatorname {N} (n,k),n\in \mathbb {N} ^{+},1\leq k\leq n} form a triangular array of natural numbers, called the Narayana triangle, that occur in various counting problems. They are named after Canadian mathematician T. V. Narayana (1930–1987).
Source: Wikipedia "Narayana number" · CC BY-SA 4.0
Share this article: X · Bluesky