[seqfan] Re: help needed with former sequence A138036

[hv at crypt.org]

franktaw at netscape.net wrote:
:Hugo left out a key word in his abbreviation of the text:
:    ... Abelian squares are unavoidable ...
:
:I think "Abelian square" means that the word has the form XABY, where A 
:and B contain the same non-empty multiset of letters; then the AB are 
:an Abelian square.

My apologies for that, I've never come across this usage - I guess
that's a danger of adding irrelevant waffle to your definitions, that
an insufficiently well-versed editor will trim too much when trying
to reduce it to something sensible.

If I understand this definition correctly, the first sequences that
are square-free but not Abelian-square-free would be of length 6,
such as ABCACB - just outside the range of the sequence shown. :)

Hugo