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Omni-MATH / Let a₁,a₂,a₃,… be a sequence of positive integers where a₁=∑_(i=0)¹⁰⁰i! and a_(i)+a_(i+1) is an odd perfect square for all i≥1. Compute the smallest possible value of a₁₀₀₀. · Discussion

Discussing Let a₁,a₂,a₃,… be a sequence of positive integers where a₁=∑_(i=0)¹⁰⁰i! and a_(i)+a_(i+1) is an odd perfect square for all i≥1. Compute the smallest possible value of a₁₀₀₀. · Omni-MATH

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