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Omni-MATH / Find all pairs (a, b) of positive integers such that 2a−1 and 2b+1 are coprime and a+b divides 4ab+1. · Discussion

Discussing Find all pairs (a, b) of positive integers such that 2a−1 and 2b+1 are coprime and a+b divides 4ab+1. · Omni-MATH

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