[seqfan] Re: True (?) reordering
Ray Chandler
rayjchandler at sbcglobal.net
Fri Mar 5 17:27:38 CET 2010
Reordering of the natural numbers does not imply that a(n)=n is disallowed.
That would be a reordering with no fixed points.
Ray
> -----Original Message-----
> when one reads in the OEIS something like:
> "A reordering of the natural numbers", does this mean that we
> never have n = a(n) in the reordered sequence? If not, is
> there a name/concept for that?
>
> Best,
> É.
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