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A254849
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Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two
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1
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1632, 2916, 5904, 13456, 34176, 87616, 216000, 518400, 1246464, 3069504, 7729920, 19501056, 48484800, 118722816, 289380096, 710968896, 1766830464, 4410022464, 10962427392, 27051038784, 66462004800, 163578184704, 404630224128
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..0..1..0..1..1....1..0..0..0..1....0..0..1..0..0....0..0..1..0..0
..0..0..1..0..1....1..1..0..1..1....0..0..0..0..1....0..0..0..0..0
..1..1..0..1..0....0..1..1..0..1....0..0..0..0..1....0..0..0..0..1
..1..1..1..0..0....0..1..0..1..0....1..0..0..0..0....0..0..0..0..0
..0..1..1..1..0....1..0..1..1..0....1..1..0..0..0....0..0..0..0..0
..1..0..0..0..1....1..1..0..0..1....0..0..0..0..0....0..1..0..0..0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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