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A235405
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Number of (n+1)X(4+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise
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1
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11100, 924132, 129700247, 12449201480, 1195654062204, 83013014302681, 5686146367749913, 305744449843735640, 16310949614471929061, 718975475223542160579, 31538321976539008993676, 1182029370366724720731365
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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=1
..1..0..2..1..2....2..0..2..2..1....0..1..0..2..1....0..1..2..1..0
..0..1..0..1..2....1..0..1..0..2....1..1..2..0..1....1..0..0..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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