A219633 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..2 7Xn array

36, 301, 22715, 1468544, 83758183, 3863292782, 149566037863, 5215608770167

Offset

1,1

Comments

Row 7 of A219627

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A067741 A185096 A073972 * A219387 A222860 A270601

Adjacent sequences: A219630 A219631 A219632 * A219634 A219635 A219636

Keyword

nonn

Author

R. H. Hardin Nov 24 2012

Status

approved