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A266105
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Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
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1
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1, 105, 1012, 4893, 53442, 841668, 9880139, 100419691, 1161577640, 14330198186, 167677854928, 1911970639884, 22299927996030, 263303415557409, 3080790433186207, 35842524252682997, 418663357107133083
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..1..0..0..0....0..0..1..2....0..0..0..1....0..1..1..0....0..0..1..1
..0..0..0..0....0..2..1..1....0..0..1..2....2..1..1..2....1..2..0..1
..1..2..0..0....0..0..0..1....0..1..1..1....0..1..1..0....0..0..1..2
..1..0..0..1....1..1..1..1....1..0..0..0....2..1..0..1....0..2..1..1
..1..2..1..0....1..0..0..1....0..0..0..1....2..1..1..0....0..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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