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A186786
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants
3
0, 580, 580, 2366, 11354, 2366, 22236, 63504, 63504, 22236, 118616, 739334, 696596, 739334, 118616, 891506, 8499038, 17120960, 17120960, 8499038, 891506, 5489048, 97501656, 281080458, 658080772, 281080458, 97501656, 5489048, 38326452
OFFSET
1,2
COMMENTS
Table starts
.......0......580......2366.....22236....118616.....891506....5489048.38326452
.....580....11354.....63504....739334...8499038...97501656.1029483706
....2366....63504....696596..17120960.281080458.5705992444
...22236...739334..17120960.658080772
..118616..8499038.281080458
..891506.97501656
.5489048
LINKS
EXAMPLE
Some solutions for 4X3
..1..2..1....2..1..1....1..2..0....3..1..0....3..2..0....2..2..2....1..1..0
..0..2..2....0..0..0....1..3..0....3..2..3....0..2..3....1..1..1....1..2..1
..0..2..3....2..1..2....0..1..0....0..0..0....0..0..3....0..1..2....0..0..0
..0..2..3....3..1..1....0..3..0....2..0..0....0..0..0....3..2..1....1..3..1
CROSSREFS
Column 1 is A185605
Sequence in context: A250727 A252985 A097769 * A185609 A127694 A185605
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 26 2011
STATUS
approved