A231842 Number of 4Xn 0..3 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors

256, 3823, 111621, 3477361, 124132900, 4378313800, 150624159314, 5122053368703, 173935962002791, 5914591691652487, 201302640481651930, 6852837476350210815, 233279127016289974579, 7940697986290030781206, 270291946695181993650338

Offset

1,1

Comments

Row 4 of A231839

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..0..0....2..1..0....2..2..0....2..2..2....0..0..0....2..1..1....1..1..0
..1..1..3....0..0..0....0..0..1....0..0..3....0..0..1....1..2..2....3..0..0
..1..1..0....3..3..1....2..3..2....0..1..1....0..2..0....3..3..1....3..3..2
..0..0..0....1..1..1....2..2..3....2..2..2....0..0..2....2..1..1....1..1..1

Crossrefs

Sequence in context: A183781 A186200 A186197 * A186558 A186554 A200843

Adjacent sequences: A231839 A231840 A231841 * A231843 A231844 A231845

Keyword

nonn

Author

R. H. Hardin, Nov 14 2013

Status

approved