login
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
OFFSET
1,2
COMMENTS
Row 5 of A231037
LINKS
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 A307470
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved