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Search: id:A081263
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| A081263 |
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Number of distinct (modulo rotation and reflection) n X n associative panmagic squares. |
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+0
2
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OFFSET
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1,5
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REFERENCES
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Gardner, M. "Magic Squares and Cubes." Ch. 17 in Time Travel and Other Mathematical Bewilderments. New York: W.H. Freeman, pp. 213-225, 1988.
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LINKS
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Eric Weisstein's World of Mathematics, Associative Magic Square
Walter Trump How many magic squares are there?
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CROSSREFS
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Cf. A006052, A081262.
Adjacent sequences: A081260 A081261 A081262 this_sequence A081264 A081265 A081266
Sequence in context: A123935 A002607 A111979 this_sequence A050467 A008835 A040259
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KEYWORD
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nonn,hard,more
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Mar 14, 2003
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EXTENSIONS
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a(6)-a(7) from Max Alekseyev (maxal(AT)cs.ucsd.edu), May 22 2008
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