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A219061
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Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX6 array
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1
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49, 3969, 258353, 16477441, 1054068853, 67441480753, 4315258520649, 276111139100297, 17666902721644133, 1130412517172994361, 72329172869535336453, 4627964732780617679017, 296119210500596743797965
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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..1..0..0..0..1....0..1..1..0..0..0....0..0..0..1..0..0....0..1..0..1..1..1
..0..0..1..1..1..0....0..1..0..0..1..0....1..1..1..1..1..1....0..0..1..1..0..1
..1..0..1..0..1..0....0..0..1..0..0..0....0..0..1..0..1..0....1..1..1..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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