A223472 Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order

72, 352, 12859, 15374, 230069, 308384, 3028801, 4938602, 35451871, 72404580, 407670569, 1027236220

Offset

1,1

Comments

Column 6 of A223473

Links

Table of n, a(n) for n=1..12.

Example

Some solutions for n=4
..0..1..2..1..2..2....0..1..0..2..1..2....0..1..0..2..2..1....0..1..0..1..2..0
..2..2..0..2..0..1....1..2..1..1..1..0....2..2..2..1..2..0....2..1..2..1..1..1
..2..2..2..1..2..2....0..1..0..2..1..2....2..1..2..2..2..1....0..1..1..0..2..0
..0..1..0..2..0..1....2..1..1..1..0..1....0..2..0..1..2..0....2..1..2..1..2..1

Crossrefs

Sequence in context: A234210 A157909 A107314 * A090788 A334902 A192792

Adjacent sequences: A223469 A223470 A223471 * A223473 A223474 A223475

Keyword

nonn

Author

R. H. Hardin Mar 20 2013

Status

approved