A183537 Number of nX3 0..3 arrays with each element equal to either the sum mod 4 of its horizontal and vertical neighbors or the sum mod 4 of its diagonal and antidiagonal neighbors

7, 43, 133, 1326, 4583, 28498, 146315, 714260, 4347058, 20890725, 119240779, 628634929, 3325454178, 18388632372, 96170628709, 526462695215, 2812362664230, 15095412456655, 81716259964836, 436545276367478, 2359997178754495

Offset

1,1

Comments

Column 3 of A183541

Links

R. H. Hardin, Table of n, a(n) for n = 1..167

Example

Some solutions for 5X3
..1..3..1....1..3..1....0..2..3....2..1..0....1..1..3....3..2..3....2..0..0
..3..1..3....3..1..3....2..3..2....2..2..3....2..1..2....3..3..3....0..2..0
..1..0..1....2..0..1....0..0..0....2..2..2....2..1..3....3..1..2....0..2..2
..1..0..1....3..0..2....3..1..0....3..0..2....3..3..0....1..0..2....2..1..0
..0..2..0....2..3..1....2..3..3....0..1..0....2..3..3....0..0..0....2..0..1

Crossrefs

Sequence in context: A216301 A201717 A134154 * A114352 A201707 A365302

Adjacent sequences: A183534 A183535 A183536 * A183538 A183539 A183540

Keyword

nonn

Author

R. H. Hardin Jan 05 2011

Status

approved