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A208005 Number of nX6 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 1 1 and 1 1 0 vertically 1
22, 484, 1690, 4993, 24512, 90232, 486443, 2001968, 10846870, 47911153, 256232284, 1188682252, 6276190547, 30137070988, 157660283714, 775400765057, 4032502502920, 20159263106416, 104466312892411, 528009028013752 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A208007
LINKS
FORMULA
Empirical: a(n) = 9*a(n-1) -2*a(n-2) -170*a(n-3) +392*a(n-4) +322*a(n-5) -1512*a(n-6) +474*a(n-7) +1498*a(n-8) -942*a(n-9) -376*a(n-10) +326*a(n-11) +a(n-12) -19*a(n-13) for n>14
EXAMPLE
Some solutions for n=4
..0..1..0..1..1..1....0..1..0..1..0..1....1..1..1..1..1..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..1..1..0..1..1....1..0..1..1..0..1....1..0..1..0..1..0
..1..0..1..0..1..0....1..1..0..1..0..1....1..1..1..1..1..0....0..1..0..1..0..1
..0..1..0..1..0..1....0..1..1..0..1..1....1..0..1..1..0..1....1..0..1..0..1..0
CROSSREFS
Sequence in context: A208111 A208843 A207664 * A207567 A209648 A207755
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 22 2012
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)