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A186014 1/8192 the number of (n+2)X6 0..3 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace 1
5341590, 9070779376, 16043983212792, 28418702031939836, 50262815203472669902, 88884044479388021963136, 157181851464796372886688987, 277959486316686617376269652771 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A186019

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

EXAMPLE

Some solutions for 4X6

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

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

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

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

CROSSREFS

Sequence in context: A147528 A338542 A115960 * A234496 A022258 A092020

Adjacent sequences:  A186011 A186012 A186013 * A186015 A186016 A186017

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 10 2011

STATUS

approved

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Last modified September 23 02:41 EDT 2021. Contains 347609 sequences. (Running on oeis4.)