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A238811
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Number of nX7 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the sum of elements above it, modulo 3
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1
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8, 83, 916, 10423, 111564, 1055763, 8526852, 58670336, 348923836, 1828642499, 8605646168, 36967467110, 146912117938, 545935075576, 1913214178820, 6366247430819, 20225439045270, 61627721732585, 180783054211948
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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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FORMULA
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Empirical polynomial of degree 28 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..0..0..2..2..0....0..0..0..0..2..2..0....0..0..0..0..2..2..0
..0..0..0..0..2..1..2....0..2..2..0..1..1..0....2..2..0..0..1..1..0
..0..0..0..2..1..2..1....0..2..1..0..0..0..2....2..1..0..0..2..2..0
..0..0..2..1..2..1..0....0..0..0..0..0..2..2....0..0..0..2..2..1..2
..0..2..1..2..1..0..0....0..0..0..0..2..2..1....0..0..0..2..1..0..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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