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A258680
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Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum
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1
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5744640, 125888400, 4096960560, 133333061904, 3662507469600, 100604912040000, 3022970884380000, 90834063491610000, 2620890308853171600, 75622137191681873296, 2230153722476731923648, 65768911202153889517824
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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=1
..0..0..0..0..0..0..1..1..1....0..0..0..0..1..0..0..0..1
..1..0..1..1..1..0..1..1..0....0..1..0..1..1..0..0..1..1
..1..0..0..1..1..0..1..0..0....0..1..1..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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