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A233046 Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing 1
29, 117, 406, 1236, 3486, 9301, 23663, 58115, 138690, 323840, 742851, 1679010, 3749771, 8289248, 18168895, 39536497, 85496710, 183891668, 393668931, 839245009, 1782590609, 3773864595, 7965997430, 16770228087, 35219988730 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 1 of A233049
LINKS
EXAMPLE
Some solutions for n=5
..0..0....0..1....2..1....1..0....1..0....0..0....2..0....0..0....2..1....0..1
..0..1....2..0....2..1....1..0....1..0....1..0....0..1....2..0....2..1....0..1
..1..1....0..1....0..2....2..1....1..1....1..0....1..1....2..0....0..2....0..1
..2..1....0..1....1..2....0..2....1..1....2..0....2..1....0..2....0..2....1..1
..1..2....2..1....1..2....0..2....0..2....0..1....0..2....0..2....2..1....1..1
..1..2....1..2....1..2....2..1....0..2....0..1....2..2....2..2....0..2....1..2
CROSSREFS
Sequence in context: A042646 A188359 A042648 * A042650 A158560 A330811
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 03 2013
STATUS
approved

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Last modified April 14 23:31 EDT 2024. Contains 371667 sequences. (Running on oeis4.)