A222367 Number of nX4 0..2 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..2 order

4, 10, 40, 191, 992, 11249, 73499, 860209, 6307306, 74012176, 548361088, 6378096812, 48367991654, 550707554841, 4263914923100, 47703529309311, 376110082681155, 4139579798966437, 33202155719397274, 359908637810354268

Offset

1,1

Comments

Column 4 of A222371

Links

R. H. Hardin, Table of n, a(n) for n = 1..121

Example

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

Crossrefs

Sequence in context: A223160 A263551 A007173 * A356913 A351493 A368166

Adjacent sequences: A222364 A222365 A222366 * A222368 A222369 A222370

Keyword

nonn

Author

R. H. Hardin Feb 17 2013

Status

approved