18207Re: Factorial flight of fancy
- Jul 14 9:46 AM--- In firstname.lastname@example.org, Phil Carmody <thefatphil@...> wrote:
> They are already on OEIS, but with no explanation:Maybe it's the new format, or Mr. Sloane is quick on the draw, but
there are explanations (look in the blue bar above the sequence)
Primes p such that p | ((p-1)/2)! -1
Primes p such that p | ((p-1)/2)! +1
respectively. Go figure huh?
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