A203249 Number of nX2 0..3 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other

16, 88, 12, 776, 760, 16104, 120260, 287100, 12080288, 2926632, 1009513332, 1912765380, 57534385968, 579172984788, 1927759303016

Offset

1,1

Comments

Column 2 of A203252

Links

Table of n, a(n) for n=1..15.

Example

Some solutions for n=3
..1..3....0..1....2..3....3..2....0..0....3..1....0..2....0..0....3..3....3..3
..0..3....0..3....0..3....3..0....1..2....3..0....0..3....2..1....2..1....1..2
..0..2....2..3....0..1....1..0....3..3....2..0....1..3....3..3....0..0....0..0

Crossrefs

Sequence in context: A225007 A352953 A070052 * A022676 A035291 A358084

Adjacent sequences: A203246 A203247 A203248 * A203250 A203251 A203252

Keyword

nonn

Author

R. H. Hardin Dec 30 2011

Status

approved