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A185760
Number of (n+1) X (n+1) binary arrays with no 2 X 2 subblock trace equal to any horizontal or vertical neighbor 2 X 2 subblock trace.
1
16, 120, 1408, 24832, 725352, 35108016, 2886249088, 404009799752, 97001975893824, 39936138225397216, 28267383108264438328, 34386216162384311589344, 71946267697028397675100904
OFFSET
1,1
COMMENTS
Diagonal of A185769.
LINKS
EXAMPLE
Some solutions for 3 X 3
..1..1..1....0..1..1....1..0..1....0..1..1....1..0..0....1..1..0....1..0..0
..0..1..0....1..0..1....1..1..1....0..0..0....0..1..0....0..1..0....0..0..0
..1..1..1....0..0..0....1..0..1....0..1..0....1..0..0....1..0..1....0..0..1
CROSSREFS
Cf. A185769.
Sequence in context: A351383 A027049 A060219 * A301649 A014732 A135794
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 03 2011
STATUS
approved