The ninth Dedekind number, then – still undiscovered by 2023, some 32 years after its predecessor was found – was overdue.
After 32 years of waiting, mathematicians calculate Dedekind's ninth number, a 42-digit giant that defied logic.
This sprawling wonderland in Springfield, Ohio has become the worst-kept secret among savvy collectors who understand that forty bucks here stretches like a magic accordion, somehow fitting more ...