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A207340
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically
1
2, 16, 84, 828, 9668, 128292, 2367656, 53882188, 1466226618, 53206438448, 2394759800657, 133358534841765, 9689628432751700, 882639945891070144, 101352502023903785258, 15016562984066207345796, 2813722789748877650099592
OFFSET
1,1
COMMENTS
Diagonal of A207346
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..1....1..1..1..1....1..1..0..1....1..0..0..1....0..1..0..0
..1..1..0..0....1..1..0..0....1..1..0..1....0..1..0..0....0..0..1..0
..0..0..1..0....0..0..1..0....0..0..1..0....1..0..1..0....1..0..0..1
..0..1..0..1....1..1..0..1....0..0..1..0....1..1..1..1....0..1..0..0
CROSSREFS
Sequence in context: A207263 A207757 A283951 * A207768 A207891 A207655
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 17 2012
STATUS
approved