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A351610
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Minimal 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) = 163:
1 2 3
2 5 4
3 4 6
a(4) = 9850:
1 2 3 4
2 8 5 6
3 5 9 7
4 6 7 10
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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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