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A156416
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Number of 14 X 14 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.
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0
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1, 6512, 4086600, 509911008, 18944759304, 266388662656, 1840450801838, 10754086795840, 75157230205402, 399699792848864, 1397876167796318, 4499416656998240, 18657442342135966, 66490911199244672, 164256548772296153
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OFFSET
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0,2
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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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