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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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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=1
..1..2..2..1..2..2....1..0..2..1..1..0....0..2..1..0..0..0....2..1..1..0..1..0
..2..0..1..1..0..0....2..1..1..1..2..1....1..1..0..2..1..2....0..1..2..2..2..0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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