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A253737
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Number of (n+2) X (5+2) 0..1 arrays with every 2 X 2 and 3 X 3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.
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1
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22236, 25012, 44332, 143080, 400068, 1059528, 3230352, 10458356, 31345596, 90751832, 283521828, 902287168, 2744697232, 8179125776, 25412894924, 79521551136, 243350008716, 735182296720, 2274754523660, 7051147684380
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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
..1..1..0..1..0..1..0....0..1..0..1..0..0..0....0..1..0..1..0..0..1
..0..0..1..0..1..0..1....1..0..0..0..1..0..0....1..1..1..0..1..0..1
..0..1..0..0..0..1..0....0..0..0..1..0..1..0....0..1..1..1..0..0..0
..0..0..0..0..1..0..0....0..0..1..0..0..0..1....1..0..1..1..1..0..1
..0..1..0..1..0..0..0....0..1..0..0..0..1..0....0..1..0..1..0..0..1
..0..1..1..0..0..0..1....0..0..0..0..1..0..1....1..1..1..1..1..1..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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