OFFSET
1,3
COMMENTS
Dissections differing only by rotations and/or reflections are not counted as distinct. - N. J. A. Sloane, Dec 06 2012
LINKS
Johan Nilsson, Illustrations of terms up to a(6).
EXAMPLE
There are six ways to dissect a square into four rectangles of equal perimeter, so a(4)=6.
CROSSREFS
KEYWORD
hard,more,nonn
AUTHOR
Herman Beeksma and Hans Riesebos (hans.riesebos(AT)wanadoo.nl), Aug 04 2005
STATUS
approved