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A156467
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Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 17.
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0
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2, 2, 44, 76, 1804, 8172, 1022492, 7436362, 4686068520, 71763897760, 74820160016800
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OFFSET
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2,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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