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A233371
Number of (6+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..6+1} nondecreasing
0
81, 1928, 38240, 781467, 15009944, 270547199, 4578333280, 72152875243
OFFSET
1,1
COMMENTS
Row 6 of A233366
EXAMPLE
Some solutions for n=3
..1..1..0..0....1..0..0..0....1..0..1..0....1..1..0..0....0..0..0..0
..0..1..0..1....0..0..1..0....1..1..1..0....1..1..0..0....0..1..0..0
..1..1..1..0....1..0..0..1....0..1..0..1....0..1..1..0....0..1..1..0
..0..1..0..1....0..1..1..0....0..0..1..1....0..0..1..1....0..1..0..1
..1..0..1..1....0..1..1..0....1..0..1..1....1..1..0..1....0..0..1..1
..1..0..1..1....0..1..0..1....0..1..1..1....0..0..1..1....0..0..1..1
..0..1..1..1....1..0..1..1....0..1..1..1....1..1..1..1....1..1..1..1
CROSSREFS
Sequence in context: A206669 A223206 A296650 * A225019 A224312 A224376
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 08 2013
STATUS
approved