A237737 Number of (n+2)X(4+2) 0..1 arrays with the (lower) median of each row and column nondecreasing

18284, 1707200, 38387146, 3285354224, 78198241984, 6351885785786, 159454491881910, 12257643095551296, 324543596662080056, 23554682313370524986, 655528709648047016880, 45012991304051860794072

Offset

1,1

Comments

Column 4 of A237738

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Sequence in context: A030331 A023340 A232142 * A145822 A286035 A217049

Adjacent sequences: A237734 A237735 A237736 * A237738 A237739 A237740

Keyword

nonn

Author

R. H. Hardin, Feb 12 2014

Status

approved