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A186961 1/729 the number of (n+2)X10 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 0
582004185, 2546947279751, 4949074316433529, 12152638841787524045, 28454687244738848695377 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A186962

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 4X10

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

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

..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..1..0

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

CROSSREFS

Sequence in context: A234199 A071135 A303268 * A032755 A234391 A297448

Adjacent sequences:  A186958 A186959 A186960 * A186962 A186963 A186964

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 01 2011

STATUS

approved

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Last modified September 17 04:03 EDT 2019. Contains 327119 sequences. (Running on oeis4.)