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A199645
Number of nX6 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors
1
6, 1384, 134748, 15066222, 1614250077, 176701683386, 19161971644783, 2085499380111100, 226676302441401393, 24649864713781053665, 2680046304287719376722, 291407720701800854792287
OFFSET
1,1
COMMENTS
Column 6 of A199647
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1..0..0..0....0..1..2..2..2..2....0..0..1..1..2..1....0..1..0..2..1..2
..0..1..0..2..2..2....0..1..2..0..0..2....2..0..2..2..2..1....0..1..0..2..1..2
..0..0..0..1..1..2....0..1..1..2..2..2....2..0..0..1..1..1....2..2..2..2..1..2
CROSSREFS
Sequence in context: A307871 A195646 A265473 * A300025 A107252 A358626
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2011
STATUS
approved