[seqfan] Re: A023202

[Fred Lunnon]

  Natural  m  coprime to  2,3  implies either  m mod 6 = 1 or 5 ; but
m mod 6 = 1  implies  (m+8)mod 6 = 0 mod 3 , which is composite.
Therefore  m mod 6 = 5 , QED.    WFL



On Sat, Mar 25, 2023 at 11:17 AM zak seidov via SeqFan <
seqfan at list.seqfan.eu> wrote:

> All terms >3 are congruent to 5 mod 6.
>
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