A189116 Number of 8Xn binary arrays without the pattern 1 1 0 diagonally or antidiagonally.

256, 65536, 3400336, 133079296, 6517280000, 332070977536, 17473826493152, 924914073760000, 49276690205414880, 2624759937460543744, 139853913235736220352, 7451253901687535139600, 397104423727338960018560

Offset

1,1

Comments

Row 8 of A189111

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 8X3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..0..1....0..0..1....1..1..0....0..0..0....0..1..0....0..1..1....1..1..1
..1..0..1....0..1..1....0..0..1....0..1..1....0..0..1....1..0..0....0..0..0
..0..0..0....1..0..1....0..0..1....0..1..0....1..0..1....0..0..1....0..0..1
..0..0..0....0..0..0....0..0..1....1..0..1....0..1..1....1..1..0....1..1..0
..0..1..1....1..1..0....1..1..0....1..0..0....1..1..1....1..0..1....1..0..1
..0..0..0....1..1..0....1..1..1....1..1..0....1..0..1....0..1..1....1..1..1

Crossrefs

Sequence in context: A189695 A188746 A188998 * A189070 A189195 A188880

Adjacent sequences: A189113 A189114 A189115 * A189117 A189118 A189119

Keyword

nonn

Author

R. H. Hardin, Apr 16 2011

Status

approved