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A232302
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Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally
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0
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1, 37, 5149, 6363511, 66287652717, 5637591065064585, 3953611274692252664219, 22845060732287997693078487339, 1087328305739985850553848837289874701, 426327214385010895269748977017138080515645751
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