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A305520
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Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
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1
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16, 512, 10082, 186237, 3536750, 66949063, 1269418258, 24080732454, 456869647792, 8669106351850, 164501969899649, 3121616742992729, 59236894351198887, 1124106233985029726, 21331602801233941787
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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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FORMULA
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Empirical recurrence of order 58 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..1..1..1. .0..1..1..0..1. .0..0..1..0..0. .0..1..1..1..1
..1..1..1..1..0. .1..1..0..1..1. .0..1..1..1..0. .0..1..1..0..0
..0..1..1..1..0. .1..1..0..0..0. .1..1..1..1..1. .1..1..0..0..1
..1..0..0..1..1. .1..1..1..0..1. .1..1..1..1..1. .0..1..0..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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