[seqfan] Concerning A078686 & A091932.

[RGWv]

Alcon,

    A couple of weeks ago it was observed that the sequence A078686 was incorrect. The sequence has stayed in the hopes that someone can rediscover its meaning. The comment now redirects you to sequence A091932 saying that the original definition "Primes p such that the minimum value of |p-2^x|, x>0, is also a prime" is prime. But that is incorrect.

    As a case in point: the prime 53 is not in A091932 yet 53-2^5=21  & 2^6-53=11.  Also 7 is in A091932 yet 2^3-7=1 which obviously is not a prime.

    Solution: I will be deleting that comment from A091932, submit a new sequence crediting Benoit with its discovery and change the redirection to this new sequence.

Sincerely, Bob.