[seqfan] Re: Staircase Polygons (with a Rotate...), a correction

N. J. A. Sloane njas at research.att.com
Sat Feb 14 17:55:18 CET 2009

After reading the definition again, I see that the order
of words should be changed slightly.  Here is a better version:

%N A073913 Number of staircase polygons on the square lattice with perimeter 2n and one (possib\
ly rotated) staircase polygonal hole.


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