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A188688
Number of n X n binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.
0
2, 16, 218, 4008, 139307, 15547072, 3647921173, 1302269111985, 832889881464413, 1248703703842553735, 4253189666054817624993
OFFSET
1,1
COMMENTS
Diagonal of A188695.
EXAMPLE
Some solutions for 4 X 4
..0..0..0..1....0..0..0..0....1..1..0..0....1..0..1..1....1..1..1..0
..1..0..0..0....1..0..1..1....0..0..0..0....0..0..1..1....1..1..0..1
..1..0..0..0....1..1..1..1....0..0..0..0....0..0..1..1....1..1..0..1
..0..1..1..1....0..1..1..1....1..0..0..0....0..1..1..1....1..0..1..1
CROSSREFS
Cf. A188695.
Sequence in context: A012164 A264543 A223638 * A188844 A187657 A047657
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 08 2011
STATUS
approved