[seqfan] Re primes with negative value

N. J. A. Sloane njas at research.att.com
Tue Apr 13 22:58:35 CEST 2010


Zak,  Thanks for this message:

But we have several "negative primes" in OEIS:

A088005            Numbers whose abundance is either a positive or a negative prime number. 

A125211            a(n) = total number of positive and negative primes of the form k! - n. 

A125212            a(n) = numbers n such that no positive and no negative prime exists of the form k! - n; or A125211(n) = 0. 

A088006            Abundance values which are either positive or negative prime numbers. 

A002143 (see rf. ET Ordman)  

A125236   (see %e )

A103807  Primes p such that p, 2p+/-27 and 2p+/-33 are all primes. (my sequence ?!)


Me:  i have cleaned up these entries to remove
any mention of negative primes.


 Best regards
 			 Neil




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