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A223059
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Number of nX5 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order
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1
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51, 19360, 9383963, 4606719559, 2266567594841, 1115636153544055, 549172612438350029, 270334270159303305523, 133074373792931796543737, 65507037468442048450168351, 32246421320132829050759287877
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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=3
..0..0..0..0..0....0..0..0..1..0....0..0..0..0..1....0..0..0..1..0
..1..2..1..1..1....2..2..3..0..2....2..3..2..1..0....2..2..2..0..1
..2..3..2..3..3....1..0..3..2..0....0..0..1..3..3....0..1..1..2..1
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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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