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A218285
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Hilltop maps: number of n X 5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..4 n X 5 array.
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1
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31, 1019, 32739, 1048307, 33549827, 1073597617, 34355128651, 1099364046509, 35179647135791, 1125748640417277, 36023954390940183, 1152766473401775135, 36888525002033045085, 1180432731369782846491, 37773845205582064670135
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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
..1..1..0..0..1....1..1..0..0..1....1..0..1..1..1....1..1..1..1..1
..1..1..0..1..1....1..0..0..1..0....0..1..0..1..1....1..0..1..1..1
..0..0..1..1..0....1..0..0..1..0....0..0..0..0..0....0..1..1..0..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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