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A316551
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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21, 127, 129, 430, 1568, 5265, 18978, 73409, 276005, 1055277, 4099795, 16069541, 63171437, 248867713, 983343967, 3892240605, 15417744510, 61119390728, 242448097787, 962127592502, 3818962311133, 15161489223289, 60200972419537
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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=5
..0..0..0..0..0..0..0. .0..1..1..1..1..1..0. .0..1..1..0..0..0..0
..0..1..0..0..0..1..0. .1..1..1..0..1..1..1. .1..1..1..1..0..0..0
..0..0..0..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..0..1..0
..1..1..1..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..0..0..0
..0..1..1..1..0..0..0. .0..1..1..1..1..1..1. .0..1..1..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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