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Search: id:a232858

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A232858

Number of (n+1)X(5+1) 0..1 arrays x(i,j) with row sums sum{j^3*x(i,j), j=1..5+1} nondecreasing, and column sums sum{i^3*x(i,j), i=1..n+1} nondecreasing

+0
0

61, 755, 11445, 178630, 2547039, 29338491, 266176765, 2040969695, 14195455926, 95355497624, 626245063454

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OFFSET

1,1

COMMENTS

Column 5 of A232860

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4

..0..0..1..1..1..0....0..1..0..1..0..0....0..0..0..1..1..1....0..1..1..0..0..0

..1..0..1..0..0..1....1..0..0..0..1..1....1..1..0..1..1..1....0..0..0..1..1..0

..0..1..1..0..1..1....0..0..1..1..1..1....0..0..1..1..1..1....1..0..1..1..1..0

..0..1..1..0..1..1....0..0..1..1..1..1....0..0..1..1..1..1....0..1..0..0..0..1

..0..0..0..1..1..1....0..1..1..1..1..1....1..1..1..1..1..1....0..0..1..1..1..1

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 01 2013

STATUS

approved

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