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A209784 Half the number of (n+1)X6 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference 1
397734, 122871278, 36572974507, 11197401806412, 3413352967754696, 1043428174053823487, 318751987571164698772, 97407366419231553054246, 29763727089493837413742773, 9094996467359607511188778436 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A209787
LINKS
EXAMPLE
Some solutions for n=4
..3..1..0..0..2..3....1..0..0..1..0..3....1..1..3..2..3..0....1..2..1..3..2..1
..0..2..2..1..1..3....2..2..1..1..0..3....1..2..2..2..3..3....3..0..3..3..1..1
..0..1..1..1..2..3....1..3..1..2..0..3....3..0..1..2..1..1....1..2..1..3..3..3
..2..1..0..2..2..1....3..3..3..2..0..3....1..2..1..2..0..0....3..2..1..3..1..3
..3..1..2..2..1..1....2..1..1..1..3..3....0..2..0..0..0..1....1..1..1..2..1..1
CROSSREFS
Sequence in context: A234331 A250925 A230148 * A015424 A083634 A209910
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 13 2012
STATUS
approved

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Last modified July 22 12:51 EDT 2024. Contains 374499 sequences. (Running on oeis4.)