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

34, 319, 2875, 30692, 334580, 3654675, 39886178, 433495407, 4690717033, 50556528980

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