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A156445
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Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 8.
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0
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1, 4, 18, 138, 3910, 446508, 89959563, 25250999564, 10095521906313, 5572579847718200, 4311704697906480578
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OFFSET
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2,2
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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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