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A186784
Number of (n+1)X3 0..3 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants
1
580, 11354, 63504, 739334, 8499038, 97501656, 1029483706, 11412065338, 126395136040, 1397513210452, 15414550870912, 170592128024378, 1886912171155070, 20866267731905124, 230752006350156298
OFFSET
1,1
COMMENTS
Column 2 of A186786
LINKS
EXAMPLE
Some solutions for 5X3
..2..0..1....3..0..0....1..0..2....2..0..1....1..0..0....2..0..1....0..0..1
..0..0..0....0..0..2....0..0..0....0..0..1....0..0..0....1..0..0....0..0..0
..0..3..0....0..1..2....2..3..1....2..1..1....1..2..2....2..2..0....3..1..1
..1..2..1....0..2..2....0..1..1....2..2..1....2..2..1....1..2..1....2..1..2
..3..3..3....0..2..2....2..3..1....1..2..2....1..2..2....2..2..0....3..1..1
CROSSREFS
Sequence in context: A185609 A127694 A185605 * A185606 A206616 A172763
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 26 2011
STATUS
approved