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A156417
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Number of 14 X 14 arrays of squares of integers, symmetric under 90-degree rotation, with all rows summing to n.
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0
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1, 0, 116760, 0, 222925920, 0, 10399874310, 0, 142353126510, 0, 1557290676774, 0, 14188463179758, 0, 76743963405033, 0
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OFFSET
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0,3
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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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