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A186894 Number of (n+1)X(n+1) binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants 0
0, 148, 444, 5401, 39372, 703983, 14050512, 523902288, 17552393136, 1009883277293, 82740925046288, 10723440611064915 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A186902
LINKS
EXAMPLE
Some solutions for 3X3
..0..0..0....1..0..1....0..1..1....0..0..1....0..0..1....0..1..0....0..0..0
..1..0..0....1..0..0....0..0..0....0..0..1....1..0..0....1..1..0....1..0..0
..0..0..0....1..0..1....1..1..1....0..0..1....1..0..0....1..0..0....1..0..1
CROSSREFS
Sequence in context: A134212 A344409 A127028 * A233727 A178264 A121280
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2011
STATUS
approved

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Last modified April 23 13:11 EDT 2024. Contains 371913 sequences. (Running on oeis4.)