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A221841
Number of ways to dissect a square into n squares up to symmetry.
2
1, 0, 0, 1, 0, 1, 2, 6, 16, 56, 183, 657, 2277, 8813, 34178, 137578, 558734, 2285694
OFFSET
1,7
EXAMPLE
For n = 7 there are a(7) = 2 ways:
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+-+ +-+ | +-+-+
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+-+---+-+ +---+-+-+
CROSSREFS
Sequence in context: A320805 A354083 A150029 * A068787 A073959 A006820
KEYWORD
nonn,nice,more
AUTHOR
Geoffrey H. Morley, Jan 26 2013
EXTENSIONS
a(10) corrected (thanks to Ed Wynn) by Geoffrey H. Morley, Aug 02 2013
More terms from Wynn, 2013. - N. J. A. Sloane, Nov 29 2013
STATUS
approved