[seqfan] Re: A092636 primes in mod 4 classes
charles.greathouse at case.edu
Fri Sep 30 19:19:38 CEST 2011
It's a matter of definition. If the last two primes below 10^n are 3
mod 4 then 1 mod 4, and the first following it is 3 mod 4, then is it
counted? The author counted it; you don't.
Case Western Reserve University
On Fri, Sep 30, 2011 at 12:41 PM, Richard Mathar
<mathar at strw.leidenuniv.nl> wrote:
> Shouldn't the count of isolated runs of primes mod 4 ==1 in
> http://oeis.org/A092636 start 1,5,31,207,1555,12465,102704,
> with 207 instead of 208?
> Richard Mathar
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