[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):
C=1,4,8,9,10,14,15,16,20,21,22,26,27,28,32,33,34,35,36,40,...
Best,
É.
[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.]
Best,
É.
Catapulté de mon aPhone
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