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A233361
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Number of (n+1)X(2+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing
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1
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14, 46, 139, 364, 849, 1928, 4281, 9315, 19741, 40967, 84289, 172238, 349179, 700980, 1406113, 2817168, 5640787, 11280975, 22553200, 45097300, 90149110, 180171641, 360001235, 719290309, 1437274041, 2870143830, 5726092077, 11425527566
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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=5
..0..0..0....0..0..0....0..1..0....1..0..0....0..0..1....0..0..0....1..1..0
..0..0..0....1..0..0....0..1..0....0..1..0....0..0..1....0..0..0....1..1..0
..0..0..0....0..0..1....0..0..1....0..0..1....1..0..1....1..0..0....0..0..1
..0..0..0....0..0..1....1..1..1....0..1..1....0..1..1....1..0..0....0..0..1
..1..1..0....0..1..1....1..1..1....0..1..1....0..1..1....0..1..1....0..0..1
..0..0..1....1..1..1....1..1..1....0..1..1....0..1..1....0..1..1....1..1..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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