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A186820 Half the number of (n+2)X6 binary arrays with each 3X3 subblock having sum 4 or 5 1
14229, 173121, 2009622, 24581099, 315843055, 4037185979, 52016332522, 676967599202, 8797063846281, 114525000303377, 1494214340595378, 19486159712805501, 254239381610119789, 3318768935260629498 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A186825

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 4X6 with a(1,1)=0

..0..0..1..1..0..0....0..0..1..0..1..1....0..0..0..0..1..0....0..0..1..0..1..0

..0..0..1..0..0..1....1..1..1..1..1..0....1..0..1..0..0..1....0..1..1..0..0..1

..1..1..0..1..1..0....0..0..0..0..0..1....0..1..1..1..1..0....0..0..1..1..0..1

..0..0..1..1..0..1....0..1..0..1..0..1....0..0..0..0..1..1....0..0..1..0..0..1

CROSSREFS

Sequence in context: A205060 A237541 A270514 * A232263 A034232 A233889

Adjacent sequences: A186817 A186818 A186819 * A186821 A186822 A186823

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 27 2011

STATUS

approved

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Last modified February 9 05:05 EST 2023. Contains 360153 sequences. (Running on oeis4.)