A185864 1/128 the number of (n+2)X9 binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace

122284, 4312662, 193660943, 8546141676, 392747944918, 18748403999482, 902732470133370, 43465221457460786, 2093335363577578796, 100815258015066256683, 4855874608710554589630, 233881846629007685815503

Offset

1,1

Comments

Column 7 of A185866

Links

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

Example

Some solutions for 4X9
..0..0..0..0..0..0..0..1..1....0..0..0..0..0..1..0..0..0
..0..0..0..1..0..1..0..1..0....0..0..0..1..1..0..1..0..0
..0..0..0..1..1..0..1..1..1....0..0..1..0..1..0..0..0..0
..0..0..1..0..0..0..1..1..0....0..0..0..0..0..0..0..0..0

Crossrefs

Sequence in context: A066881 A048903 A237793 * A236797 A115545 A224584

Adjacent sequences: A185861 A185862 A185863 * A185865 A185866 A185867

Keyword

nonn

Author

R. H. Hardin Feb 05 2011

Status

approved