A219778 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..1 7Xn array.

8, 14, 171, 1745, 17186, 147717, 1163030, 8679368, 61361285, 409680425, 2584132877, 15449166423, 87819951101, 476032198566, 2467679302712, 12268760011126, 58663392681482, 270456263554588, 1205039357307464

Offset

1,1

Comments

Row 7 of A219773

Links

R. H. Hardin, Table of n, a(n) for n = 1..44

Example

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

Crossrefs

Sequence in context: A395800 A177170 A275006 * A180756 A279708 A327875

Adjacent sequences: A219775 A219776 A219777 * A219779 A219780 A219781

Keyword

nonn

Author

R. H. Hardin, Nov 27 2012

Status

approved