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A239645
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Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it, modulo 4
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1
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16, 418, 12246, 320314, 8634040, 232304146, 6219477628, 167002115382, 4480024646968, 120194161637198, 3224850795644656, 86521373598621284, 2321331783000405634, 62280781184357139014, 1670970691795092353254
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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
..3..0..0..1....3..0..0..1....3..1..1..3....1..0..0..0....3..1..1..3
..2..1..1..2....2..3..0..0....3..0..0..2....2..1..0..0....2..0..1..2
..1..0..2..2....1..2..0..0....3..0..2..2....3..0..0..1....1..0..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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