login
A223030
Number of nX4 0..2 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order
1
6, 58, 472, 1341, 6472, 15374, 60497, 142610, 499278, 1229381, 3993742, 10383806, 32203849, 87752662, 265166874, 747479421, 2230395230, 6428099474, 19088788221, 55776955238, 165502617034, 487703210601, 1448532737138, 4291268460250
OFFSET
1,1
COMMENTS
Column 4 of A223033
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..1....0..1..2..1....0..1..0..2....0..1..0..1....0..1..0..2
..2..0..2..0....0..0..0..0....2..2..2..1....1..2..1..2....2..2..1..1
..0..1..0..1....2..1..0..1....1..2..2..0....0..1..1..0....1..0..2..0
CROSSREFS
Sequence in context: A197543 A184708 A004301 * A292574 A354228 A073848
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2013
STATUS
approved