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A205175
Number of (n+1)X3 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards
1
2504, 61320, 1373400, 24657580, 431119786, 6934715463, 111837040063, 1771131367142, 28327757365626, 453494114475033, 7305871237209949, 117969494611489634, 1909620189311351615, 30943236980670320787
OFFSET
1,1
COMMENTS
Column 2 of A205181
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0....2..0..3....0..1..1....2..3..1....1..3..2....2..1..0....1..3..2
..2..3..2....0..0..2....1..3..3....1..1..3....3..1..3....3..0..3....0..1..0
..1..1..1....1..1..0....3..2..2....3..3..1....2..3..2....0..1..2....2..0..2
..3..3..3....2..1..3....1..3..3....0..2..3....2..3..2....3..1..1....2..1..3
..1..1..1....1..1..2....3..2..2....3..2..3....2..3..3....1..1..3....0..1..1
CROSSREFS
Sequence in context: A031688 A031548 A045216 * A205274 A234790 A251858
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 22 2012
STATUS
approved