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A210152
1/4 the number of (n+1)X5 0..3 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences
1
169343, 115368738, 78387305947, 53276322556234, 36208249913281496, 24608360596681275093, 16724671741551847807857, 11366651677032505181918785, 7725160246447746958229463507, 5250279729930610551058645077609
OFFSET
1,1
COMMENTS
Column 4 of A210156
LINKS
EXAMPLE
Some solutions for n=4
..1..0..2..0..1....1..3..3..1..2....1..0..3..3..3....3..1..0..0..1
..2..2..3..0..0....0..2..2..1..2....2..2..3..2..2....1..1..1..2..2
..1..3..3..2..0....0..0..1..1..2....2..2..3..2..2....3..0..3..3..0
..2..2..1..1..0....2..0..1..3..2....3..1..1..2..1....0..0..3..3..2
..1..1..3..2..2....0..0..0..0..2....1..2..1..3..3....1..0..1..0..2
CROSSREFS
Sequence in context: A185474 A034211 A308635 * A089203 A236054 A233801
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 18 2012
STATUS
approved