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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

R. H. Hardin, Table of n, a(n) for n = 1..76

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

Adjacent sequences:  A205922 A205923 A205924 * A205926 A205927 A205928

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2012

STATUS

approved

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Last modified September 17 08:57 EDT 2019. Contains 327128 sequences. (Running on oeis4.)