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A204397
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Number of (n+2)X9 0..1 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..1 introduced in row major order
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1
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1276088, 47258642, 1547710600, 46611372488, 1536831498888, 49709204045442, 1597165262402016, 51721201311318450, 1671276692913450360, 53960732756570371778, 1744025607538600418280, 56353915920328789667528
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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=3
..0..0..0..0..0..1..1..0..1....0..1..0..1..0..1..0..0..0
..0..1..1..1..1..1..1..1..1....0..0..1..0..0..0..1..0..1
..0..1..0..0..0..1..0..0..0....1..0..1..0..1..0..1..0..1
..0..1..1..0..0..0..0..0..1....1..1..1..1..0..0..1..0..1
..1..0..1..0..1..1..1..1..1....0..0..0..1..0..1..1..0..1
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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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