A196428 Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than itself

55, 33923, 7435275, 3308601959, 1248257908304, 474961518391793, 183732499361910707, 70706720669032680165, 27203319554166783727185, 10469148902804156123215324, 4029715335371515977755198342

Offset

1,1

Comments

Column 6 of A196430

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

Some solutions for n=3
..0..0..3..2..0..1....2..0..3..0..3..0....1..3..2..0..1..2....1..0..3..0..3..0
..0..0..0..1..4..1....0..2..2..1..1..0....0..0..0..3..4..1....3..1..2..2..1..3
..2..0..3..1..0..0....0..3..0..1..3..0....0..2..2..1..0..0....0..3..0..3..0..1

Crossrefs

Sequence in context: A201008 A172722 A221000 * A231907 A027580 A265980

Adjacent sequences: A196425 A196426 A196427 * A196429 A196430 A196431

Keyword

nonn

Author

R. H. Hardin Oct 02 2011

Status

approved