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A316951
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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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5, 1493, 71505, 4335826, 259163370, 15440641209, 920789559090, 54906173292280, 3273992108473660, 195225156534000032, 11641092125426590175, 694147342926715857535, 41391351968297005683248, 2468127308681014210659067
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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 76 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..0..0..1..1. .0..0..0..1..1..0. .0..0..0..0..0..0. .0..0..0..1..1..0
..0..1..1..1..0..1. .0..1..1..1..1..1. .0..1..1..1..1..0. .0..1..1..1..0..1
..0..0..0..0..0..1. .0..0..0..1..1..0. .0..0..0..0..0..1. .0..0..0..1..1..1
..1..0..1..0..1..1. .1..0..1..1..1..1. .1..0..1..0..1..0. .1..0..0..1..1..0
..0..0..0..1..0..0. .0..0..0..1..0..0. .0..0..0..1..0..0. .0..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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