Exploring the Collatz Mod9 Progression by Harold Nowak

A diagram showing modular arithmetic for the Collatz conjecture, with nodes labeled '0mod9' through '8mod9' connected by red arrows. The top section, labeled 'Going up (3n+1)/2' and 'Odd numbers', shows complex connections from even residues to odd residues. The bottom section, labeled 'Going down n/2' and 'Even numbers', shows a circular path for odd residues and a simple bidirectional connection for even residues, with '0mod9' circled alone. The text overlays explain the mathematical operations for odd and even numbers.

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