A203595 Number of nX2 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other

9, 16, 46, 16, 596, 936, 5326, 64452, 35472, 2267096, 6154424, 36768700, 493844572, 304850530, 19837028156, 60734482172, 379565828184, 5278506424584, 3491085331400, 230590641604648, 737735394947292, 4754537676837632

Offset

1,1

Comments

Column 2 of A203600

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

Some solutions for n=5
..1..2....0..1....2..0....2..2....2..2....2..1....1..0....1..2....0..2....2..2
..2..2....0..2....1..0....2..0....2..1....2..0....2..2....0..2....1..2....1..2
..0..2....0..2....2..0....1..0....0..0....2..0....0..2....0..2....2..2....1..2
..1..0....0..2....2..1....0..0....1..0....2..0....0..1....1..2....1..0....0..0
..0..0....1..2....2..0....1..2....2..2....1..0....0..0....0..0....0..0....0..1

Crossrefs

Sequence in context: A282470 A067956 A270757 * A187087 A072861 A183371

Adjacent sequences: A203592 A203593 A203594 * A203596 A203597 A203598

Keyword

nonn

Author

R. H. Hardin Jan 03 2012

Status

approved