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A233118
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Number of (1+1)X(n+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..1+1} nondecreasing
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1
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29, 112, 365, 1079, 2969, 7697, 19161, 46225, 108546, 249922, 566434, 1265910, 2799170, 6135198, 13338545, 28815311, 61913201, 132347696, 281740017, 597597160, 1263139459, 2662173760, 5596312274, 11734716808, 24553681879
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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..2..0..2..2....0..1..0..1..2..2....1..0..1..1..1..1....0..1..1..1..1..1
..1..1..0..1..2..2....1..1..2..2..2..2....1..2..2..2..2..2....0..0..0..2..2..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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