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A206317 Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero 1
25637095, 23019152735, 20808377921080, 18792437854613234, 16933907482183625564, 15245666610426961469352, 13716254602125340475868528, 12336975902231208201294106142, 11094395430478243136970514760806 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206318

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..2..0..2..1..1..1..2..3....3..0..2..2..1..1..0..2....2..0..2..0..3..0..3..0

..0..2..1..0..3..2..1..1....1..2..1..0..3..2..1..3....2..1..3..1..0..1..0..1

..2..1..3..2..1..0..3..2....3..0..2..1..0..3..2..0....3..2..0..3..1..2..1..2

..3..2..0..3..2..1..0..3....2..2..3..2..1..0..3..1....2..1..1..0..2..0..2..1

CROSSREFS

Sequence in context: A233448 A112130 A120702 * A184563 A231120 A234358

Adjacent sequences:  A206314 A206315 A206316 * A206318 A206319 A206320

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2012

STATUS

approved

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Last modified December 6 06:58 EST 2016. Contains 278775 sequences.