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Search: id:A156445
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| A156445 |
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Number of nXn arrays of squares of integers, symmetric about main diagonal, with all rows summing to 8. |
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1
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| 1, 4, 18, 138, 3910, 446508, 89959563, 25250999564, 10095521906313, 5572579847718200, 4311704697906480578
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