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A203248
Number of nX1 0..3 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other
1
4, 16, 48, 116, 220, 288, 232, 96, 1520, 11424, 51588, 147516, 262188, 265968, 118152, 2407728, 21719616, 111520288, 349455712, 664646688, 707435200, 324489120, 7180862720, 69332666120, 376038448800, 1228994674700, 2405966773100
OFFSET
1,1
COMMENTS
Column 1 of A203252
LINKS
EXAMPLE
Some solutions for n=8
..1....3....0....3....0....3....3....0....3....3....2....1....3....3....3....3
..1....3....2....3....0....1....3....0....3....0....0....1....0....0....3....3
..2....1....3....2....1....0....0....3....0....0....0....0....1....0....1....2
..3....0....3....0....3....3....0....3....0....1....1....0....3....2....0....0
..3....3....1....0....3....3....2....2....1....1....2....3....3....3....0....3
..1....2....0....3....2....2....3....2....3....3....2....3....2....3....3....1
..0....0....0....1....1....0....1....0....2....3....3....2....0....1....2....0
..0....0....3....0....1....0....0....1....0....2....3....2....0....0....0....0
CROSSREFS
Sequence in context: A006009 A261977 A100625 * A223839 A071009 A210066
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 30 2011
STATUS
approved