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A351611
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Maximal permanent of an n X n symmetric matrix using the integers 1 to n*(n + 1)/2.
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2
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OFFSET
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0,3
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LINKS
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EXAMPLE
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a(3) = 420:
1 5 6
5 3 4
6 4 2
a(4) = 41451:
1 5 8 10
5 4 9 7
8 9 3 6
10 7 6 2
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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