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A239822
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Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4
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1
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25, 582, 17552, 510748, 14544801, 418324402, 12059066460, 347095468871, 9991360194005, 287711413471266, 8284928413145004, 238566125657445992, 6869701227384114007, 197820645386511819554, 5696463550662058123697
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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
..2..3..2....2..3..0....2..3..2....2..3..0....3..2..3....2..3..3....3..2..0
..2..3..0....1..2..2....1..3..2....1..2..0....1..2..1....1..2..1....3..0..2
..3..0..1....2..0..0....3..1..2....1..3..3....3..2..2....1..3..3....1..0..0
..2..1..2....3..1..2....1..2..2....2..3..2....3..2..0....2..0..3....3..1..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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