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A184678
Number of (n+1)X(n+1) binary arrays with every 2X2 subblock singular
1
10, 128, 3360, 221968, 31817360, 10876933264, 8344809419152, 14901599172048528, 60581954550463205264, 567946901826257621019792, 12186523252504462055625831824, 601019440996497914601529636314768
OFFSET
1,1
COMMENTS
Diagonal of A184686
LINKS
EXAMPLE
Some solutions for 3X3
..1..1..0....0..0..0....0..0..0....0..0..0....0..0..0....1..1..0....1..0..1
..0..0..0....0..0..1....0..0..0....1..1..1....0..1..0....0..0..0....0..0..1
..1..1..1....1..0..0....1..0..0....1..1..1....0..0..0....0..1..0....0..0..1
CROSSREFS
Sequence in context: A234284 A296379 A183538 * A360941 A007819 A054050
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2011
STATUS
approved