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A316737
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Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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3, 70, 210, 410, 4956, 25047, 75856, 491644, 2699059, 11179338, 58763909, 311368010, 1461336648, 7338344526, 37672028307, 184684418326, 920506468813, 4650553597518, 23121920630552, 115283798061892, 578484724524505
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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 93 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..1..1..0..0. .0..1..1..1..0. .0..0..0..1..1. .0..0..0..0..1
..0..0..1..1..0. .1..0..0..1..1. .0..1..0..1..0. .0..1..0..1..0
..1..1..1..1..1. .1..1..1..1..1. .1..0..0..0..0. .1..0..0..0..0
..1..1..0..0..1. .0..1..1..0..0. .1..0..0..0..1. .0..1..0..0..0
..0..0..1..1..1. .0..0..1..1..0. .1..0..0..1..1. .0..0..0..0..1
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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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