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A186527 Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant 0
81, 8410, 4456218, 11180777496, 132204817900858 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A186536
LINKS
EXAMPLE
Some solutions for 3X3
..1..1..1....1..2..2....1..0..1....2..1..0....2..1..0....2..2..0....1..0..2
..1..2..1....1..1..0....2..1..0....2..0..2....2..0..2....0..2..0....1..1..0
..2..0..2....0..1..2....1..2..2....1..2..0....2..2..0....1..0..2....2..2..2
CROSSREFS
Sequence in context: A123847 A115443 A328089 * A178511 A184337 A034993
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 23 2011
STATUS
approved

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Last modified March 2 02:30 EST 2024. Contains 370447 sequences. (Running on oeis4.)