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A233058
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Number of (n+1)X(1+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing
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1
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7, 16, 33, 66, 132, 265, 530, 1052, 2092, 4183, 8354, 16635, 33179, 66383, 132711, 264751, 528676, 1057904, 2115653, 4224206, 8439821, 16888361, 33778253, 67474289, 134850638, 269827760, 539703540, 1078399254, 2155614282, 4313028554
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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
..1..0....0..0....0..0....0..0....0..1....0..0....0..0....0..0....0..0....0..0
..1..0....0..0....0..0....0..0....0..1....1..0....0..1....0..0....0..0....0..1
..0..1....0..0....0..0....0..0....0..1....0..1....0..1....0..0....0..1....0..1
..0..1....0..1....0..0....1..1....0..1....0..1....1..1....0..0....1..0....0..1
..0..1....1..0....1..0....1..1....1..0....0..1....1..1....0..0....1..0....0..1
..0..1....0..1....0..1....1..1....1..1....0..1....1..1....1..1....0..1....0..1
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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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