[seqfan] Re: Q regarding comment in A000079 (Powers of 2)
franktaw at netscape.net
franktaw at netscape.net
Wed Jun 24 08:25:47 CEST 2009
Well, of course, the original (with left) is also correct; just the
examples don't match it.
Franklin T. Adams-Watters
-----Original Message-----
From: Joerg Arndt <arndt at jjj.de>
* Joerg Arndt <arndt at jjj.de> [Jun 24. 2009 15:54]:
> > [...]
Sloppy me, in
> Added this one:
> %C A000079 Permutations of n+1 elements where no element is more
> than one position left of its original place. For example, there
> are 4 such permutations of three elements: 123, 132, 213, and
> 312. The 8 such permutations of four elements are 1234, 1243,
> 1324, 1423, 2134, 2143, 3124, and 4123. [From Joerg
> Arndt (arndt(AT)jjj.de), June 24 2009]
>
it should be:
> than one position RIGHT of its original place. For example, there
^^^^^
was: "left"
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