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A223148 Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
72, 5721, 487176, 36926759, 2829178640, 219590496125, 17348791308859, 1392509665602089, 113307992984969726 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A223149

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A167871 A103861 A216705 * A289368 A119750 A283093

Adjacent sequences:  A223145 A223146 A223147 * A223149 A223150 A223151

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2013

STATUS

approved

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Last modified April 9 23:53 EDT 2020. Contains 333392 sequences. (Running on oeis4.)