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A197434
Number of n X n 0..2 arrays with no element equal to the average of its horizontal and vertical neighbors
0
3, 34, 5032, 5184780, 41434710920, 2476133354164264, 1112998745351676081292
OFFSET
1,1
COMMENTS
Diagonal of A197442
EXAMPLE
Some solutions for n=4
..0..0..0..2....0..0..0..1....0..0..0..2....0..0..0..2....0..0..0..2
..2..2..1..0....2..2..2..1....2..2..0..2....2..2..2..0....2..2..1..2
..1..1..0..2....1..2..1..1....0..2..1..0....1..2..2..2....1..0..2..1
..2..0..0..2....2..0..0..0....2..1..1..2....1..0..1..2....2..0..2..0
CROSSREFS
Sequence in context: A337069 A102104 A194890 * A194891 A194892 A182382
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 15 2011
STATUS
approved