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Omni-MATH / Determine the number of sequences of sets S₁,S₂,…,S₉₉₉ such that S₁⊆S₂⊆⋯⊆S₉₉₉⊆1,2,…,999 Here A⊆B means that all elements of A are also elements of B. · Discussion

Discussing Determine the number of sequences of sets S₁,S₂,…,S₉₉₉ such that S₁⊆S₂⊆⋯⊆S₉₉₉⊆{1,2,…,999} Here A⊆B means that all elements of A are also elements of B. · Omni-MATH

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