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A231041 Number of 5Xn 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, 2, 278, 20250, 783848, 79772488, 5472540636, 439734512038, 32779172536324, 2528383081956048, 192252299440875736, 14709518845671963492, 1122375608553171253262, 85742995996289464755458 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A231037

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A119553 A093938 A172374 * A080296 A260331 A277879

Adjacent sequences:  A231038 A231039 A231040 * A231042 A231043 A231044

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 03 2013

STATUS

approved

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Last modified October 23 08:57 EDT 2019. Contains 328345 sequences. (Running on oeis4.)