A253355 Number of (6+1)X(n+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

2470, 60779, 1285960, 29779356, 664592224, 15101198444, 340810754556, 7718859534172, 174609465692412, 3952593151324508, 89455292982348156, 2024830824062678364, 45830713758743507260, 1037376112305113319452

Offset

1,1

Comments

Row 6 of A253350

Links

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

R. H. Hardin, Empirical recurrence of order 43

Formula

Empirical recurrence of order 43 (see link above)

Example

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

Crossrefs

Sequence in context: A082253 A253229 A253348 * A204614 A204798 A224723

Adjacent sequences: A253352 A253353 A253354 * A253356 A253357 A253358

Keyword

nonn

Author

R. H. Hardin, Dec 30 2014

Status

approved