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A183602
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1/6 the number of (n+1)X9 0..2 arrays with every 2X2 subblock containing all three values
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1
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209304, 30539367, 3823553752, 495215814566, 63854542807704, 8251614370134644, 1066653925785997106, 137936054886331468840, 17840841964756696807680, 2307848389145766144487866, 298559730522953008074518020
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