[seqfan] A127368 triangular coprimes

Kevin Ryde user42 at zip.com.au
Fri Mar 2 01:01:26 CET 2012


A127368 which is triangular X if X,Y are coprime might have a typo in
the last two sample values.  The table at http://oeis.org/A127368/table
ends

   1  0  3  0  0  0  7  9  0 

but I wonder if it's meant to be

   1  0  3  0  0  0  7  0  9  0

ie. either the last two values swapped or an extra 0 inserted.  Either
way making position 10,8 have value 0 because 10,8 has a common factor.



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