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A209219 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically 1
2, 16, 60, 196, 900, 5476, 38232, 287296, 3132576, 37625956, 515992736, 9773299600, 197179936872, 5340055452736, 166631085360000, 6057724646680996, 305548384194976300, 15689243192533764624, 1137621414073872082528 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A209224
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1....0..1..1..0....1..1..0..1....1..0..0..1....1..1..0..0
..1..1..0..0....0..1..1..0....0..1..1..0....0..1..1..0....0..1..1..1
..1..1..1..0....1..0..0..1....1..0..1..1....1..1..1..1....1..0..1..1
..0..0..1..1....1..1..0..1....1..1..0..1....1..0..0..1....1..1..0..0
CROSSREFS
Sequence in context: A206980 A357816 A170991 * A207688 A208495 A207583
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 06 2012
STATUS
approved

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Last modified May 20 02:39 EDT 2024. Contains 372703 sequences. (Running on oeis4.)