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A184649
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T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock having a positive determinant
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4
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106449, 3745509, 3745509, 127914873, 398829619, 127914873, 4349714604, 40374310135, 40374310135, 4349714604, 148865535558, 3941878848972, 11808364027889, 3941878848972, 148865535558, 5086456344189, 398138249828378
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OFFSET
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1,1
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COMMENTS
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Table starts
........106449.........3745509........127914873.......4349714604
.......3745509.......398829619......40374310135....3941878848972
.....127914873.....40374310135...11808364027889.3298741433422598
....4349714604...3941878848972.3298741433422598
..148865535558.398138249828378
.5086456344189
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..24
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EXAMPLE
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Some solutions for 5X4
..0..0..2..0....0..0..2..0....0..0..2..0....0..0..2..0....0..0..2..0
..1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1
..1..1..0..0....0..1..0..0....3..1..0..1....0..1..0..1....0..1..0..1
..3..2..3..0....0..2..3..0....2..3..1..0....1..1..2..0....2..0..3..3
..3..0..1..2....3..2..0..1....3..0..2..1....2..2..3..1....3..1..1..3
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CROSSREFS
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Sequence in context: A242479 A252775 A210410 * A184646 A237542 A237081
Adjacent sequences: A184646 A184647 A184648 * A184650 A184651 A184652
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KEYWORD
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nonn,tabl
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AUTHOR
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R. H. Hardin Jan 18 2011
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STATUS
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approved
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