[seqfan] Absolute first differences are a permutation of the primes

[Eric Angelini]

Hello SeqFans,

would it be possible to build two sequences A & B such that:

A is a permutation of the non-primes

B is a permutation of the primes 

and B shows the absolute first differences of A.

 

I guess A could start like this (if we extend respectively

A and B with the "smallest available integer not leading to

a contradiction"):

 

A = 1 4 6  25 20  9 16  33  10  39  8  21

B =  3 2 19  5  11 7  17  23  29  31 13

 

Not sure this is possible, though...

Best,

É.