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A205996
Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero
1
15252, 445352, 13324720, 403768668, 12247835464, 372736115952, 11329617750556, 344896522846756, 10488581198699106, 319255436413700648, 9710750954285060690, 295543172702892331212, 8990520513073214869046
OFFSET
1,1
COMMENTS
Column 6 of A205998
LINKS
EXAMPLE
Some solutions for n=4
..1..2..0..2..0..1..1....0..2..0..1..2..0..2....0..1..2..2..1..0..1
..1..0..1..0..1..0..2....1..0..1..0..1..1..0....1..2..1..0..2..1..2
..0..1..2..1..2..1..0....2..1..2..1..0..2..1....1..0..2..1..0..2..0
..1..2..0..2..1..0..2....0..2..1..2..1..0..2....0..1..0..2..1..0..2
..1..0..1..0..2..1..0....2..1..0..1..2..1..0....1..2..1..0..2..1..0
CROSSREFS
Sequence in context: A233924 A115924 A251952 * A296087 A252318 A233602
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 02 2012
STATUS
approved