A222356 Number of nX4 0..1 arrays with no more than floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order

4, 8, 24, 73, 268, 1315, 5381, 25239, 113538, 533356, 2402550, 11364630, 52069277, 244650515, 1134406835, 5333956135, 24882161838, 117126702147, 549346385165, 2588758810240, 12188021953812, 57529499698695, 271604205050473

Offset

1,1

Comments

Column 4 of A222360

Links

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

Example

Some solutions for n=4
..0..0..1..1....0..1..0..1....0..1..1..1....0..0..1..1....0..0..0..1
..0..0..0..0....0..0..0..0....1..1..1..1....0..0..1..1....0..0..0..0
..0..0..0..0....0..0..0..0....1..1..1..1....0..0..1..1....0..0..0..1
..0..0..0..0....0..0..0..0....1..1..1..0....0..0..1..1....0..0..0..0

Crossrefs

Sequence in context: A116556 A334324 A010366 * A370158 A214201 A265185

Adjacent sequences: A222353 A222354 A222355 * A222357 A222358 A222359

Keyword

nonn

Author

R. H. Hardin Feb 16 2013

Status

approved