A233121 Number of (4+1)X(n+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..4+1} nondecreasing

1636, 110078, 6419678, 326851781, 14834218690, 610630273520, 23120077836128, 814295555596585

Offset

1,1

Comments

Row 4 of A233117

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=2
..0..1..1....1..1..0....0..0..0....1..1..1....0..0..2....1..1..1....0..0..2
..0..1..1....0..1..1....2..0..1....1..0..2....0..2..1....1..0..2....1..0..2
..0..2..0....1..0..1....1..1..2....1..2..1....0..2..1....2..0..1....2..0..2
..2..0..1....2..1..1....1..2..1....1..1..2....0..2..1....0..2..2....0..2..2
..1..1..2....1..2..2....2..2..2....2..2..1....1..0..2....2..2..1....2..2..0

Crossrefs

Sequence in context: A052455 A252619 A224461 * A054808 A218010 A298075

Adjacent sequences: A233118 A233119 A233120 * A233122 A233123 A233124

Keyword

nonn

Author

R. H. Hardin, Dec 04 2013

Status

approved