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A251334
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Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to 2 4 or 6
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1
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297057, 17016861, 1196729319, 101704182219, 9919268234529, 1058556262797069, 119455642968747047, 13949234525976217235, 1663357602303254905433, 200912017723012996227481, 24460705247632859451004015
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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
..0..1..0..2..2..2..2..2....0..1..1..0..1..1..2..2....0..0..1..1..0..0..0..0
..2..1..0..2..0..0..0..0....1..0..0..1..0..2..1..1....0..2..1..1..2..2..2..2
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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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