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A203606
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Number of nX4 0,1 arrays with adjacent row and column sums unequal
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1
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2, 44, 728, 10016, 129656, 1649668, 20742920, 256903112, 3151779352, 38451720324, 466959465212, 5648183965356, 68109502172416, 819331697005244, 9836181686366944, 117879822160978616, 1410647793481255432
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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 4X4
..0..0..1..1....0..1..1..0....1..1..0..0....1..1..0..1....1..0..0..1
..0..0..0..1....0..0..1..0....1..0..1..1....0..0..1..0....0..0..1..0
..0..0..0..0....1..1..1..0....0..0..1..0....0..1..1..1....1..1..0..1
..1..0..0..0....1..1..1..1....1..1..1..1....0..1..0..1....1..1..0..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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