A183376 Number of nX3 binary arrays with no element equal to the mod 3 sum of its king-move neighbors

2, 9, 28, 68, 143, 364, 952, 2509, 6412, 16544, 42939, 111540, 291108, 757309, 1972172, 5144362, 13414809, 34987626, 91292436, 238197883, 621533082, 1622128746, 4233391807, 11048462916, 28837147416, 75265508987, 196446917068

Offset

1,1

Comments

Column 3 of A183380

Links

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

Example

Some solutions for 5X3
..0..1..0....1..1..0....1..1..1....0..1..1....0..1..0....0..1..1....0..1..0
..1..0..1....1..0..1....1..1..1....0..1..1....1..0..1....1..0..1....1..0..1
..1..0..1....0..1..0....1..1..1....0..0..0....1..0..1....0..1..0....1..0..1
..1..1..1....0..0..0....1..1..1....0..0..0....1..1..1....1..1..1....0..1..0
..1..0..1....0..1..0....1..1..1....1..0..1....1..0..0....1..0..1....0..0..0

Crossrefs

Sequence in context: A248658 A121643 A353017 * A131066 A341507 A058877

Adjacent sequences: A183373 A183374 A183375 * A183377 A183378 A183379

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved