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A297719
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Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.
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1
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37, 2651, 68919, 2699832, 107787351, 4021047904, 154327332017, 5920531350715, 226188909640209, 8657932603026022, 331360189636829166, 12678860316903190032, 485194134262201742340, 18567112995250259829761
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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..1..0..0. .1..1..0..0..0..0..0. .1..0..0..1..0..0..0
..1..0..0..1..0..0..0. .0..1..0..0..0..1..1. .0..1..1..1..0..0..0
..1..1..0..0..1..1..0. .0..0..1..0..0..1..0. .0..1..0..0..1..1..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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