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A218204
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Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..2 nX6 array
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1
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49, 3697, 243953, 15491481, 986715373, 62898202889, 4010296932181, 255691410570153, 16302319940388693, 1039399046535129357, 66269738827040491989, 4225209395073151758765, 269389846510288006570825
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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..1..0..1..0....0..1..0..1..1..1....0..0..0..0..0..1....0..0..1..0..0..0
..0..1..0..1..0..1....1..1..0..1..1..0....0..1..1..1..1..1....1..0..0..1..0..0
..1..0..1..1..1..0....0..0..0..0..1..1....1..0..1..0..0..0....1..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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