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A220798
Agreement numbers: number of nX3 arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..2 nX3 array
0
4, 66, 1165, 20578, 363260, 6413473, 113229500, 1999059559, 35293275842
OFFSET
1,1
COMMENTS
Column 3 of A220800
EXAMPLE
Some solutions for n=3
..1..0..0....2..1..1....1..0..0....2..2..1....0..2..2....2..1..0....2..2..2
..3..2..1....1..0..1....1..0..1....3..2..1....2..3..2....1..2..2....1..1..1
..2..2..1....0..1..1....0..1..2....1..1..1....1..1..1....0..2..2....1..3..1
CROSSREFS
Sequence in context: A241705 A015475 A197947 * A220784 A025585 A302657
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 21 2012
STATUS
approved