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A222426
Number of nX3 0..2 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order
1
0, 4, 4, 75, 298, 3256, 12442, 142378, 538894, 6301728, 23842008, 282114008, 1069422214, 12748422020, 48447493914, 580528933846, 2211742435662, 26603475803716, 101589612854304, 1225538029932274, 4689384205041280
OFFSET
1,2
COMMENTS
Column 3 of A222430
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0....0..1..0....0..0..0....0..1..1....0..0..1....0..1..1....0..0..1
..0..1..1....1..0..0....0..0..0....1..1..1....2..2..2....2..2..2....0..0..0
..1..1..1....0..0..0....0..1..0....0..1..1....2..2..2....2..2..2....0..0..0
..1..1..1....0..0..0....1..1..1....1..1..1....2..2..2....2..2..2....1..0..0
CROSSREFS
Sequence in context: A119600 A244027 A219796 * A107053 A327303 A337302
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 19 2013
STATUS
approved