A253963 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

16544, 148332, 1501724, 15946360, 167174472, 1776422573, 18766879524, 200052924697, 2120928268556, 22563627780321, 239316890622432, 2543377016374825, 26985242829750688, 286617838915627817

Offset

1,1

Comments

Row 3 of A253961

Links

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

Example

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

Crossrefs

Sequence in context: A170779 A251903 A253956 * A253759 A091089 A109028

Adjacent sequences: A253960 A253961 A253962 * A253964 A253965 A253966

Keyword

nonn

Author

R. H. Hardin, Jan 20 2015

Status

approved