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URL: https://oeis.org/A233351

⇱ A233351 - OEIS

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A233351
Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.
0
80, 556, 3362, 18445, 94060, 454538, 2109213, 9486430, 41642985, 179349952, 760872901, 3189476955, 13243160545, 54571364182, 223510706911, 911004934329, 3698792967378
OFFSET
1,1
COMMENTS
Column 1 of A233353
EXAMPLE
Some solutions for n=5
..0..0....1..0....2..1....0..0....0..2....0..0....0..1....2..0....1..0....0..2
..3..0....1..1....2..1....3..1....2..0....0..1....0..1....1..2....2..1....0..3
..2..1....1..1....1..3....1..3....1..1....0..1....1..1....2..2....2..1....3..1
..2..2....3..1....1..3....3..2....0..3....0..1....1..1....2..3....3..1....2..2
..2..3....2..3....1..3....2..3....3..1....1..0....2..0....2..3....1..3....3..1
..2..3....2..3....3..2....2..3....1..3....1..3....1..3....2..3....1..3....1..3
CROSSREFS
Sequence in context: A233353 A233354 A200432 * A365887 A107624 A388001
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 07 2013
STATUS
approved