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A251348
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Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock summing to 3 4 or 5
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1
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72243, 8671957, 1089569635, 139048718681, 17831423507215, 2290637311033759, 294431140648806145, 37853419597875901305, 4866989460227715608167, 625789580809994010462331, 80463877083261588313702829
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