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A238284
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Number of (n+1)X(4+1) 0..3 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors
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1
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144, 13948, 737366, 27913368, 1058583000, 44441926832, 1931022884277, 82508389421874, 3470891253761820, 145872518046542058, 6155861335428543193, 260232903353528638680, 10995149731230961462745, 464237140754455444786421
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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=2
..0..1..3..3..3....1..3..3..3..3....0..2..3..3..3....0..0..2..2..0
..0..1..1..3..3....0..2..2..2..1....0..1..2..2..2....0..0..0..0..0
..1..1..1..3..3....0..2..2..2..1....1..1..2..2..2....1..1..0..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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