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A159228
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1/12 the number of nXn arrays of squares of integers with every 2X2 subblock summing to 29
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0
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3, 12, 33, 95, 237, 665, 1669, 4765, 12213, 35557, 92693, 273525, 720597, 2143125, 5679189, 16962005, 45087573, 134958677
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