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A230524
Number of nX6 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero
1
0, 32832, 13230788, 6768331956, 3550368078592, 1844551938024312, 959021374133908722, 498682290491203324876, 259300538768422491856738, 134829114660746538770234406, 70107462792963736083322209658
OFFSET
1,2
COMMENTS
Column 6 of A230526
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1....0..0..0..0..2..1....0..0..0..1..2..1....0..0..0..0..1..1
..1..0..1..1..1..2....1..0..0..1..0..2....1..0..1..2..2..0....1..0..1..0..0..2
..2..1..2..1..1..1....0..2..1..0..0..1....1..2..1..0..1..2....2..1..0..2..1..2
CROSSREFS
Sequence in context: A045061 A183889 A272892 * A168666 A353019 A170780
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 22 2013
STATUS
approved