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A223130
Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order
1
41, 5376, 622568, 112106293, 12483535858, 2373042420012, 266413907612919, 52026602889237335, 5888785066309216678, 1169006907613853988993, 133131028198472766703859, 26716908349922784017780109
OFFSET
1,1
COMMENTS
Row 5 of A223126
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1....0..0..0....0..0..1....0..0..1....0..0..1....0..0..1....0..0..1
..1..0..1....1..1..2....1..2..1....1..2..2....1..0..1....0..0..1....1..0..2
..1..2..1....1..1..0....1..2..2....0..2..1....0..2..1....1..0..1....2..1..0
..1..2..1....2..1..2....0..1..0....0..0..1....1..0..1....2..0..1....0..0..1
..2..0..2....0..1..2....2..1..1....1..0..2....0..2..1....0..2..1....0..2..1
CROSSREFS
Sequence in context: A233079 A159992 A101830 * A091758 A208255 A221325
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 15 2013
STATUS
approved