[seqfan] Re: Definition of A023200
T. D. Noe
noe at sspectra.com
Fri Mar 5 03:41:10 CET 2010
At 3:14 AM +0100 3/5/10, Klaus Brockhaus wrote:
>I happened to look at A023200 and saw that some time ago you corrected
> %N A023200 Primes p such that p and p + 4 are both primes.
> %E A023200 Definition corrected by Vincenzo Librandi
>(vincenzo.librandi(AT)tin.it), Aug 02 2009
>In my view this definition is somewhat clumsy, it contains the
>redundancy "Primes p such that p is prime".
>Possibly better definitions are
> %N A023200 Numbers n such that n and n+4 are prime.
> %N A023200 Primes p such that p+4 is prime.
>Would you please tell which wording the definition had before you
The definition was
%N A023200 Numbers n such that n and n+4 are both prime.
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