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A231036 Number of nX7 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero 1
0, 80, 96882, 18856728, 5472540636, 1844073908022, 555813932009140, 172121737615080530, 53553780104360423648, 16590812140498319525228, 5145308089828626695232104, 1596083784558005651501379272 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A231037

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A159408 A159391 A323448 * A051184 A159444 A208187

Adjacent sequences:  A231033 A231034 A231035 * A231037 A231038 A231039

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 03 2013

STATUS

approved

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Last modified August 19 18:33 EDT 2019. Contains 326133 sequences. (Running on oeis4.)