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Search: id:A163737
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| A163737 |
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Number of nX6 binary arrays with all 1s connected, all corners 1, and no 1 having more than two 1s adjacent |
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+0
1
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OFFSET
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1,2
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EXAMPLE
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All solutions for n=2
...1.0.0.0.0.1...1.1.1.0.0.1...1.1.1.1.0.1...1.1.1.1.1.1...1.0.0.1.1.1
...1.1.1.1.1.1...1.0.1.1.1.1...1.0.0.1.1.1...1.0.0.0.0.1...1.1.1.1.0.1
------
...1.0.1.1.1.1
...1.1.1.0.0.1
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CROSSREFS
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Sequence in context: A058897 A058985 A116951 this_sequence A164081 A164082 A159571
Adjacent sequences: A163734 A163735 A163736 this_sequence A163738 A163739 A163740
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net) Aug 03 2009
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