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A219076
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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..1 nX6 array
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1
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31, 2435, 134809, 7561349, 433704331, 24734141495, 1410242020653, 80444813963129, 4588436794733591, 261712432286491659, 14927540586501299193, 851435525780779197693, 48564066186463152044491, 2769991245247350703909311
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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..0..1..1..0..1....0..1..0..1..0..0....0..1..1..1..1..1....1..1..1..1..1..1
..0..1..0..0..0..1....0..0..1..0..1..0....1..0..1..1..1..0....0..0..1..0..0..1
..0..0..1..1..1..0....1..0..1..1..1..0....1..1..1..0..1..1....1..0..1..1..1..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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