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A163726 Number of nX5 binary arrays with all 1s connected, a path of 1s from left column to right column, and no 1 having more than two 1s adjacent 0
1, 26, 236, 1611, 9012, 42833, 184346, 750199, 2938865, 11140954 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
All solutions for n=2
...1.1.1.1.1...1.1.1.1.1...1.1.1.1.1...1.1.1.1.1...0.0.0.0.0...0.0.0.0.1
...0.0.0.0.0...0.0.0.0.1...1.0.0.0.0...1.0.0.0.1...1.1.1.1.1...1.1.1.1.1
------
...1.0.0.0.0...1.0.0.0.1...1.1.0.0.0...1.1.0.0.1...1.1.1.0.0...1.1.1.0.1
...1.1.1.1.1...1.1.1.1.1...0.1.1.1.1...0.1.1.1.1...0.0.1.1.1...0.0.1.1.1
------
...1.1.1.0.0...1.1.1.0.1...1.1.1.1.0...1.1.1.1.0...0.0.0.1.1...1.0.0.1.1
...1.0.1.1.1...1.0.1.1.1...0.0.0.1.1...1.0.0.1.1...1.1.1.1.0...1.1.1.1.0
------
...0.0.1.1.1...0.0.1.1.1...1.0.1.1.1...1.0.1.1.1...0.1.1.1.1...0.1.1.1.1
...1.1.1.0.0...1.1.1.0.1...1.1.1.0.0...1.1.1.0.1...1.1.0.0.0...1.1.0.0.1
------
...1.1.0.1.1...0.1.1.1.0
...0.1.1.1.0...1.1.0.1.1
CROSSREFS
Sequence in context: A172124 A196633 A196638 * A293614 A245873 A275880
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 03 2009
STATUS
approved

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Last modified February 25 21:07 EST 2024. Contains 370333 sequences. (Running on oeis4.)