Last Updated:2025/12/05
(combinatorics) Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number Bₙ is the number of different ways to partition a set that has exactly n elements.
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Bell number
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Source Word
Bell number
Noun
Japanese Meaning
組み合わせ論における用語で、n個の要素を持つ集合を分割する方法の総数、すなわち集合の全ての分割法の数を示す数列の一要素。
( plural )