A254558 Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

586508, 1412248, 3475823, 9912158, 22791266, 64180262, 174169154, 449672470, 1181178372, 3178180769, 8577622338, 23374338451, 63619374492, 172838948499, 469793624214, 1279801193242, 3487993255848, 9516902005493, 25974718805164

Offset

1,1

Comments

Row 6 of A254553

Links

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

Example

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

Crossrefs

Sequence in context: A050518 A249610 A254551 * A254481 A183968 A104962

Adjacent sequences: A254555 A254556 A254557 * A254559 A254560 A254561

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved