A219477 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 7Xn array

120, 3259, 982456, 208345624, 37552353044, 5432184254977, 664221777830589

Offset

1,1

Comments

Row 7 of A219471

Links

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

Example

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

Crossrefs

Sequence in context: A052721 A060490 A158048 * A183266 A231129 A052722

Adjacent sequences: A219474 A219475 A219476 * A219478 A219479 A219480

Keyword

nonn

Author

R. H. Hardin Nov 20 2012

Status

approved