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A186792 Half the number of (n+2)X7 binary arrays with each 3X3 subblock having a sum in 2..7 1
893145, 101532811, 11506373601, 1304974153960, 147985903265501, 16782289067411968, 1903184045712789082, 215829354195761109113, 24475987389818757238854, 2775683466530909270842129 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A186796

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..115

EXAMPLE

Some solutions for 4X7 with a(1,1)=0

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

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

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

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

CROSSREFS

Sequence in context: A269219 A224594 A105379 * A032429 A184456 A190391

Adjacent sequences:  A186789 A186790 A186791 * A186793 A186794 A186795

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 26 2011

STATUS

approved

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Last modified July 21 04:40 EDT 2019. Contains 325189 sequences. (Running on oeis4.)