Last Updated
：2025/12/04
Narayana number
Noun
Japanese Meaning
組合せ論における三角形状の自然数の配列。各要素は N(n, k) （n = 1, 2, 3, …, 1 ≤ k ≤ n）の形で定義され、様々な数え上げ問題で利用される。
（ plural ）
Quizzes for review
(combinatorics) Any of the triangular array of natural numbers defined by N(n, k), n = 1, 2, 3 ..., 1 ≤ k ≤ n, occurring in various counting problems.
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Narayana number
To count certain lattice paths, she referenced the Narayana number N(5,2) for insight.
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To count certain lattice paths, she referenced the Narayana number N(5,2) for insight.
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