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A159229
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1/16 the number of nXn arrays of squares of integers with every 2X2 subblock summing to 30
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0
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3, 11, 29, 77, 189, 509, 1277, 3581, 9213, 26621, 69629, 204797, 540669, 1605629, 4259837, 12713981, 33816573, 101187581
(list; graph; refs; listen; history; internal format)
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