[seqfan] Re: True (?) reordering
Joerg Arndt
arndt at jjj.de
Tue Mar 9 08:59:10 CET 2010
Neat!
(even...) -> 8 -> 6 -> 4 -> 2 -> 1 -> 3 -> 7 -> 9 -> (odd...)
My conceptual problem here was/is to accept
(infinite odd) -> (infinite even)
as I stick to the rule "infinity is not a number".
I'll make an exception here 8-)
* franktaw at netscape.net <franktaw at netscape.net> [Mar 08. 2010 08:03]:
> Yes, of course it can. See, for example,
> http://www.research.att.com/~njas/sequences/A065168, which consists of
> a single, infinite cycle.
>
> Franklin T. Adams-Watters
>
> -----Original Message-----
> From: Joerg Arndt <arndt at jjj.de>
> ...
>
> Regarding cycles:
> can a permutation of the naturals have an
> infinite cycle (my guess: no)?
>
>
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