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A207448 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically 1
2, 16, 90, 760, 5200, 46956, 370734, 3599104, 31807710, 329885620, 3198732768, 35206521816, 369188811082, 4287997640080, 48104913781890, 586813738039904, 6984278125524784, 89124296743065348, 1118012637781250310 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A207453
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1....0..1..1..1..1....0..1..0..1..0....1..0..1..1..1
..0..1..0..1..1....0..1..0..1..0....1..1..0..1..0....1..0..1..1..1
..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....1..0..1..0..0
..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....1..0..1..0..0
..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....1..0..1..0..0
CROSSREFS
Sequence in context: A207019 A207164 A208113 * A207362 A208008 A208550
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 17 2012
STATUS
approved

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Last modified July 13 09:13 EDT 2024. Contains 374274 sequences. (Running on oeis4.)