[seqfan] Non primes and non prime remainders

Eric Angelini Eric.Angelini at kntv.be
Sun Oct 5 11:34:29 CEST 2014

Hello SeqFans,
C is the "sister" sequence of the previous one.
C starts with c(1)=1 and is always extended
with the smallest non prime c(n) such that
c(n)/c(n-1) has a non prime remainder.
We get (if I'm not wrong):



[if of interest, the "panaché" sequences could be computed and added
to the OEIS too:

C' starts with 1 and C' is extended with the
smallest non prime c'(n) such that c'(n)/c'(n-1) 
has a prime remainder;

P' starts with 2 and P' is extended with the
smallest prime p'(n) such that p'(n)/p'(n-1)
has a non prime remainder.]

Catapulté de mon aPhone

More information about the SeqFan mailing list