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A198641
Number of 2nX8 0..2 arrays with values 0..2 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors
0
3936, 10937316, 30189380016, 83436203795656, 230598746057340176
OFFSET
1,1
COMMENTS
Column 4 of A198642
EXAMPLE
Some solutions for n=2
..0..0..1..2..1..2..0..0....0..0..1..0..1..0..1..0....0..0..1..0..2..0..1..0
..0..0..0..1..0..1..0..0....0..0..0..1..0..1..0..2....0..0..0..1..0..1..2..1
..1..0..0..2..1..0..2..1....1..0..0..2..1..2..1..0....1..0..0..2..1..2..0..2
..2..1..2..1..0..2..1..0....2..1..2..1..0..1..0..2....0..1..2..1..2..1..2..0
CROSSREFS
Sequence in context: A031822 A288894 A289563 * A045232 A252455 A233688
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 27 2011
STATUS
approved