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A234160
Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1
1
649450, 193116778, 57647946980, 17566272589090, 5391006112450218, 1661285969383854576, 513096321262694789718, 158690337181889624875158, 49123836190724283158557568, 15216294709692549181512831606
OFFSET
1,1
COMMENTS
Column 7 of A234161
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..1..1..1..1....0..0..0..1..1..1..1..0....0..0..1..0..1..1..0..1
..0..1..0..1..1..1..0..1....0..0..1..0..1..0..0..1....1..1..0..0..1..0..0..0
CROSSREFS
Sequence in context: A251398 A057847 A058327 * A105002 A162892 A232675
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2013
STATUS
approved