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A221027
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Sum of neighbor maps: log base 2 of the number of nX7 binary arrays indicating the locations of corresponding elements equal to the sum mod 2 of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nX7 array
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0
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7, 13, 19, 27, 35, 42, 45, 53, 62, 69, 72, 83, 90, 95, 101, 112, 119, 125, 131, 139, 147, 154, 154, 168, 175, 181, 187, 195, 203, 210, 213
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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..1..1..0..1....0..0..0..1..0..1..1....0..1..1..0..1..0..0
..0..1..1..0..0..0..0....0..0..1..1..1..0..0....0..1..1..1..1..0..0
..0..0..0..1..1..0..0....1..0..1..0..0..1..0....0..0..0..0..0..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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