[seqfan] Q: cyclotomic cosets A006694

Joerg Arndt arndt at jjj.de
Tue Jan 18 14:14:07 CET 2011

In A006694 there is the comment:
"Conjecture: a(n) is the number of orbits
  in (Z\(2n+1)Z)* generated by 2."

But that is the definition of the sequence, correct?
(note to myself: if so, A139035 needs editing as well)

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