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A189899
Number of n X n binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally
0
2, 16, 512, 35656, 6442436, 2719427244, 2662054379066, 6207537762978575
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A189905
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for 4X4
..1..0..1..1....1..1..0..1....1..0..0..1....1..0..0..1....0..0..0..0
..1..0..0..0....1..0..1..0....1..1..1..1....1..1..1..1....0..1..1..0
..1..0..0..0....1..0..0..0....0..0..1..0....1..1..0..0....0..0..1..0
..1..1..1..1....1..0..1..1....1..0..1..1....0..1..0..0....0..0..1..0
CROSSREFS
Sequence in context: A012389 A009710 A012393 * A189335 A189773 A189152
Adjacent sequences: A189896 A189897 A189898 * A189900 A189901 A189902
KEYWORD
nonn
AUTHOR
R. H. Hardin May 01 2011
STATUS
approved

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Last modified November 15 11:55 EST 2024. Contains 377755 sequences.
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