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A205924
Number of (n+1)X7 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero
1
215294, 4085161, 22176946, 535691452, 2853968414, 88272553560, 454195592550, 16886828676263, 84210499905622, 3496356219518227, 17017031345808388, 751139677139537584, 3586967937464808168, 164035122758416628806
OFFSET
1,1
COMMENTS
Column 6 of A205926
LINKS
EXAMPLE
Some solutions for n=4
..0..1..3..2..0..2..3....3..0..3..1..3..2..3....1..0..1..1..3..1..3
..1..1..1..2..2..2..2....3..3..3..3..3..3..3....1..1..1..2..3..3..3
..3..1..2..2..1..2..3....0..1..3..1..3..1..2....0..1..2..2..2..3..2
..1..1..1..2..2..2..2....1..1..1..1..1..1..1....1..1..1..2..3..3..0
..2..0..1..1..2..3..1....3..0..1..3..0..1..2....3..1..2..2..2..3..3
CROSSREFS
Sequence in context: A083639 A272410 A118875 * A203730 A273219 A351662
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 01 2012
STATUS
approved