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A187423 Number of (n+1)X6 0..2 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants 0
15055, 319792, 5254072, 139898890, 2868461180, 72355701549 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A187425
LINKS
EXAMPLE
Some solutions for 3X6
..1..0..2..2..0..0....1..0..1..2..0..0....1..1..1..0..1..0....0..2..2..2..0..0
..2..0..0..1..1..0....1..0..1..1..0..2....0..0..1..1..2..1....0..0..1..2..0..0
..2..0..2..2..0..0....0..0..1..0..0..2....1..0..2..1..1..1....0..1..1..1..0..1
CROSSREFS
Sequence in context: A254581 A254588 A254356 * A186215 A347077 A257017
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 2011
STATUS
approved

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Last modified July 25 14:57 EDT 2024. Contains 374611 sequences. (Running on oeis4.)