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A205925 Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero 1
1035724, 25017018, 98991836, 3047588270, 10728448308, 454195592550, 1371965011892, 78896152838142, 203503107838856, 15087999339134950, 33757539378700388, 3044839998379132364, 6051262580845528912 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A205926
LINKS
EXAMPLE
Some solutions for n=4
..3..1..1..0..3..3..1..1....0..1..1..3..2..2..1..3....0..2..0..2..3..2..2..3
..0..1..2..2..2..3..3..1....1..1..2..3..3..1..1..1....2..2..2..2..2..2..3..3
..1..1..1..2..3..3..1..1....1..2..2..2..3..3..1..0....3..2..0..2..0..2..2..3
..2..1..2..2..2..3..3..0....1..1..2..3..3..1..1..1....0..2..2..2..2..2..3..3
..2..2..2..1..2..2..3..3....1..2..2..2..3..0..1..0....2..2..3..0..1..2..2..3
CROSSREFS
Sequence in context: A254567 A235722 A115497 * A030084 A030092 A237073
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 01 2012
STATUS
approved

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Last modified July 24 14:22 EDT 2024. Contains 374584 sequences. (Running on oeis4.)