[seqfan] Re: Seqfan Digest, Vol 36, Issue 1

franktaw at netscape.net franktaw at netscape.net
Tue Sep 6 21:37:17 CEST 2011

This has all been resolved. The sequence has been "resurrected" as 
A194923, with an explanation there.

Franklin T. Adams-Watters

-----Original Message-----
From: William Keith <william.keith at gmail.com>

On Tue, Sep 6, 2011 at 7:44 PM, Peter Lawrence 
<peterl95124 at sbcglobal.net>wrote:

> Neil,
>        sequence of all possible lists over the letters "0", "1", "2",
>         such that within a list no two adjacent letters are the same,
>        firstly sorted by length of list,
>        secondly lists of same length sorted lexicographically.

I believe this should rather be, no two adjacent segments of any length.
You'll note that {1,2,1,2} also does not appear.

> -Peter Lawrence.

William J. Keith

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