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A186557
Number of (n+1)X5 0..3 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors
4
927477, 783375343, 663296784123, 561714653720250, 475681559860717916, 402827283017904807331, 341131017852900112413067, 288884064380556803805427879, 244639147969972250796140260427
OFFSET
1,1
COMMENTS
Column 4 of A186558
LINKS
EXAMPLE
Some solutions for 3X5
..0..0..0..0..1....0..0..0..2..3....2..0..3..2..3....2..0..3..2..1
..2..0..2..0..0....2..0..2..0..3....2..0..2..0..3....2..0..2..3..2
..0..0..2..1..2....0..0..1..0..3....0..0..2..2..1....0..0..1..3..3
CROSSREFS
Sequence in context: A345623 A346341 A115172 * A136924 A029818 A130672
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 23 2011
STATUS
approved