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A156437
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Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 5.
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0
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2, 6, 42, 291, 2962, 44124, 2078160, 253938600, 45965640312, 10615656460584, 3031205165103456, 1051966701961097184
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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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