A253356 Number of (7+1)X(n+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

6740, 265605, 8289288, 294392852, 9887498224, 340936886060, 11626813328444, 398578975350940, 13633999376006716, 466850450860194844, 15978940687094003772, 547023103552208133532, 18725253669758435162108

Offset

1,1

Comments

Row 7 of A253350

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 84

Formula

Empirical recurrence of order 84 (see link above)

Example

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

Crossrefs

Sequence in context: A345849 A253230 A253349 * A204615 A204799 A151637

Adjacent sequences: A253353 A253354 A253355 * A253357 A253358 A253359

Keyword

nonn

Author

R. H. Hardin, Dec 30 2014

Status

approved