A232850 Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing.

112, 1169, 10020, 69096, 395858, 1977447, 8733769, 35038672, 129401308, 446455554, 1449355171, 4445398493, 12943299647, 35960503702, 95710408560, 245007196179

Offset

1,1

Comments

Column 2 of A232852

Links

Table of n, a(n) for n=1..16.

Example

Some solutions for n=4
..2..2..0....0..0..0....1..0..1....2..1..1....0..0..0....1..2..0....0..0..0
..2..2..0....1..1..0....0..2..1....1..2..1....1..0..0....0..0..1....1..0..0
..0..2..1....1..0..1....0..2..1....0..1..2....1..0..1....1..2..2....1..1..0
..2..2..1....1..0..1....0..1..2....2..2..2....0..1..2....1..2..2....0..1..1
..0..0..2....1..2..2....0..2..2....2..2..2....0..2..2....1..2..2....0..1..2

Crossrefs

Sequence in context: A249469 A234673 A232785 * A233115 A188152 A353782

Adjacent sequences: A232847 A232848 A232849 * A232851 A232852 A232853

Keyword

nonn

Author

R. H. Hardin, Dec 01 2013

Status

approved