[seqfan] Re: A certain semigroup

David Newman davidsnewman at gmail.com
Tue Nov 18 22:56:13 CET 2008

I see your problem and perhaps I could have done better in posing the
question.  I agree that what I have described is not an equivalence

The triple {S1,S2,S3} or

which you've mentioned, counts as one element of the set which I am trying
to count.  No other words belong in there because no others are equivalent
to either S1, S2, or S3.

Does this answer your question?  Or am I leaving myself open to several

More information about the SeqFan mailing list