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A186043 Number of (n+2)X(n+2) binary arrays with each 3X3 subblock singular 0
338, 21466, 4071834, 1926378146, 2795398080908, 11449128594687024, 127786000491037137748 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A186052
LINKS
EXAMPLE
Some solutions for 4X4
..0..1..1..1....1..1..0..1....0..0..0..1....0..1..1..0....1..0..0..1
..1..0..0..0....0..0..0..0....1..0..1..0....0..0..0..0....0..0..0..0
..0..1..1..0....1..0..0..0....1..0..0..0....0..1..0..1....1..1..1..1
..0..0..0..1....1..0..0..0....0..0..1..1....1..1..0..0....0..0..0..0
CROSSREFS
Sequence in context: A059976 A232782 A035750 * A107546 A235880 A158000
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 11 2011
STATUS
approved

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Last modified July 24 21:32 EDT 2024. Contains 374585 sequences. (Running on oeis4.)