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A181017
Number of nX(n+6) binary matrices with rows and columns each in strictly increasing order as binary numbers and every 0 adjacent to a 1 and every 1 adjacent to a 0
0
0, 0, 0, 0, 0, 0, 10, 17126, 24027686, 40597122781, 133344779207591
OFFSET
1,7
COMMENTS
Superdiagonal 6 of A181011
EXAMPLE
Some solutions for 7X13
..0..1..1..1..1..1..1..1..1..1..1..1..1
..1..0..0..0..0..0..0..0..0..0..0..0..0
..1..0..0..1..1..1..1..1..1..1..1..1..1
..1..0..1..0..0..0..0..0..0..1..1..1..1
..1..0..1..0..0..1..1..1..1..0..0..0..0
..1..0..1..0..1..0..0..1..1..0..0..1..1
..1..0..1..0..1..0..1..0..1..0..1..0..1
CROSSREFS
Sequence in context: A179425 A203466 A203695 * A360213 A055321 A092300
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 30 2010
STATUS
approved