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A210382
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences
1
73, 13399, 18515113, 192819707871, 15131054507351557, 8946828669222001072923, 39860904095207157826344048581, 1338142445856203852961023218176264667, 338481168217540639990536405859266581293849121
OFFSET
1,1
COMMENTS
Diagonal of A210390
LINKS
EXAMPLE
Some solutions for n=4
..0..2..1..2..2....2..0..2..2..0....0..1..2..2..0....2..1..0..2..1
..2..2..1..1..1....1..0..1..2..1....0..0..2..0..2....2..2..1..1..0
..1..0..0..0..0....2..1..0..2..1....2..0..1..0..0....1..1..0..0..0
..1..1..1..0..2....1..1..2..2..1....0..2..2..1..2....0..0..0..0..0
..1..2..1..1..1....2..1..1..1..0....0..0..2..0..0....0..1..2..0..1
CROSSREFS
Sequence in context: A176987 A174747 A364301 * A091757 A070531 A274591
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2012
STATUS
approved