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A210388
Number of (n+1)X7 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences
1
2668077, 3398046223, 4327063104645, 5512336193872815, 7022635194726704581, 8946828669222001072923, 11398269977304081985788081, 14521414001971479753332954339, 18500305591567510345480379056213
OFFSET
1,1
COMMENTS
Column 6 of A210390
LINKS
EXAMPLE
Some solutions for n=4
..2..2..1..1..1..1..0....2..1..1..1..1..2..0....1..2..0..1..2..1..2
..0..0..0..1..1..1..0....1..2..2..1..1..1..1....0..0..2..1..2..0..1
..2..1..2..1..1..1..0....2..1..2..2..2..0..1....2..0..1..0..0..2..1
..1..0..0..0..1..1..1....0..0..2..1..1..0..2....1..0..0..0..1..2..2
..2..0..1..2..1..2..1....1..2..0..1..1..2..2....2..1..2..1..0..2..2
CROSSREFS
Sequence in context: A250911 A157840 A063413 * A251044 A151513 A147712
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2012
STATUS
approved