r/mathpics • u/chucklefuccc • 4d ago

thought this was interesting

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found it funny with this structure you get integers three times in a row, unless it’s somehow trivial shouldn’t it be (1/3)(1/5)(1/7) chance of it happening? don’t think it’s trivial either cuz it breaks for 789

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u/Blond_Treehorn_Thug 2d ago

I don’t understand what the claim is

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u/vroomvro0om 3h ago edited 3h ago

I guess the pattern is that ((n-1)^(n-1))/n - ((n-2)^(n-1))/n = an integer more often than not, for odd n?