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A230982
Number of white square subarrays of (n+1)X(n+1) binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with upper left element zero
1
1, 1, 11, 47, 685, 7357, 223270, 5447557, 367167586, 19728028907, 2960154980175, 351638142057035, 116764729695106769, 30699761856170182376, 22542682942448533813110, 13106281552221398203554555
OFFSET
1,3
COMMENTS
Diagonal of A230989
LINKS
EXAMPLE
Some solutions for n=6
..0..x..0..x..0..x..1....0..x..1..x..0..x..0....0..x..0..x..1..x..1
..x..1..x..1..x..0..x....x..1..x..0..x..1..x....x..1..x..0..x..0..x
..1..x..1..x..1..x..1....0..x..1..x..1..x..1....0..x..0..x..1..x..0
..x..0..x..0..x..0..x....x..0..x..1..x..0..x....x..1..x..1..x..1..x
..0..x..1..x..1..x..0....1..x..0..x..0..x..0....1..x..1..x..0..x..1
..x..1..x..0..x..1..x....x..0..x..1..x..1..x....x..0..x..0..x..0..x
..0..x..0..x..1..x..0....1..x..1..x..0..x..0....1..x..1..x..1..x..1
CROSSREFS
Sequence in context: A138362 A191499 A072372 * A024530 A117066 A042984
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 02 2013
STATUS
approved