The story
Named after Canadian mathematician T. V. Narayana (1930–1987).
Etymology from Wiktionary, CC BY-SA 4.0.
Narayana number
Today it means: 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. Full definition →