A196543 Number of n X 7 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than or equal to itself.

77, 116911, 18047775, 19551716726, 15090629432544, 12880710896209551, 11727457709816827017

Offset

1,1

Comments

Column 7 of A196544.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A196544.

Sequence in context: A271243 A271244 A271245 * A201983 A278370 A278654

Adjacent sequences: A196540 A196541 A196542 * A196544 A196545 A196546

Keyword

nonn

Author

R. H. Hardin, Oct 03 2011

Status

approved