[seqfan] Re: A053709

[Max Alekseyev]

But the difference here is 2, which is smaller than n=3.

On Wed, Jul 23, 2014 at 1:06 PM, Robert G. Wilson v <rgwv at rgwv.com> wrote:
> The term  Hans is referring to is the first term - 3. 3! = (5+7)/2. Bob.
>
> -----Original Message-----
> From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Max Alekseyev
> Sent: Wednesday, July 23, 2014 12:45 PM
> To: Sequence Fanatics Discussion list
> Subject: [seqfan] Re: A053709
>
> Hi Hans,
>
> Which term you refer to?
>
> If d <=n, then both n!+d and n!-d are divisible by d and thus cannot be prime.
>
> Regards,
> Max
>
>
> On Wed, Jul 23, 2014 at 12:34 PM, Hans Havermann <gladhobo at teksavvy.com> wrote:
>> https://oeis.org/A053709
>> Prime balanced factorials: n! is the mean of its 2 closest primes.
>>
>> "The difference between n! and its 2 closest primes must exceed n."
>> Why? It's not true for one of the terms.
>>
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