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A233061 Number of (n+1)X(4+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..4+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 0
34, 319, 2875, 30692, 334580, 3654675, 39886178, 433495407, 4690717033, 50556528980 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A233062

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A209808 A160146 A101092 * A281805 A034978 A251938

Adjacent sequences:  A233058 A233059 A233060 * A233062 A233063 A233064

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified May 6 16:03 EDT 2021. Contains 343586 sequences. (Running on oeis4.)