最終更新日：2022/12/24
A number i for which π(i) ≥ i is called a weak excedance of π, while a number i for which π(i) > i is called an excedance of π.
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A number i for which π(i) ≥ i is called a weak excedance of π, while a number i for which π(i) > i is called an excedance of π.
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