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A202927
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Number of nX4 0..2 arrays with adjacent row and column sums unequal
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1
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24, 2444, 194636, 14394092, 1032147416, 72961197604, 5108912536716, 355319989467096, 24594054479225084, 1696354402524087764, 116689792549722046964, 8009869338667569120504, 548878921109534525040696
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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..2..1....1..0..0..2....0..0..0..0....0..0..2..2....0..0..1..0
..2..0..2..1....0..1..1..0....0..0..1..1....2..2..0..2....1..2..0..2
..2..2..1..2....0..2..1..1....0..1..2..0....0..1..2..1....0..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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