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A223039
Number of nX4 0..3 arrays with no more than floor(nX4/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order
1
11, 1265, 229437, 42964721, 8206670940, 1590576924149, 311543161837482, 61504928367575855, 12217149892788877445, 2438751075983097268086, 488783777099597628446445, 98294363180577784998680559
OFFSET
1,1
COMMENTS
Column 4 of A223041
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..2....0..1..0..1....0..0..1..0....0..1..0..0....0..1..0..2
..3..0..3..0....1..1..2..2....2..0..3..0....2..1..2..2....3..1..0..3
..3..0..1..1....2..0..3..0....3..2..1..2....3..1..0..3....0..0..1..1
CROSSREFS
Sequence in context: A266368 A182553 A340293 * A209093 A078274 A013716
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 12 2013
STATUS
approved