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A206319 Number of (n+1)X(n+1) 0..3 arrays with every 2X3 or 3X2 subblock having exactly three clockwise edge increases 0
256, 16892, 10258408, 30018231756, 419904864999804, 28153923918860656368, 9069132565961324534394832, 14057869699230976600019746011216 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A206327

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A238064 A176764 A235964 * A216397 A090650 A206181

Adjacent sequences:  A206316 A206317 A206318 * A206320 A206321 A206322

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2012

STATUS

approved

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Last modified September 16 10:23 EDT 2019. Contains 327094 sequences. (Running on oeis4.)