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A265456
Number of nX6 0..n+6-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.
1
1864, 502154, 161435322, 52509347006, 16879041018070, 5327856426356284, 1653688201339124766, 505814947757578021828, 152811753980421954365094, 45684812294133949143632978, 13536944058009909827807440148
OFFSET
1,1
COMMENTS
Column 6 of A265458.
LINKS
EXAMPLE
Some solutions for n=1
..2..3..2..1..3..5....4..2..3..2..1..3....1..2..0..1..3..1....4..3..4..2..4..2
CROSSREFS
Cf. A265458.
Sequence in context: A204889 A204885 A231029 * A023744 A054816 A052168
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2015
STATUS
approved