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A187311 Half the number of (n+2)X5 binary arrays with each 3X3 subblock having sum 3, 4, 5 or 6 1
10262, 237650, 5422402, 125103786, 2885253967, 66555378453, 1535446610156, 35423389400148, 817231843461740, 18853921505477183, 434968805589706807, 10034934369985494192, 231510653332437370574, 5341059614442076742761 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A187317

LINKS

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

EXAMPLE

Some solutions for 4X5 with a(1,1)=0

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

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

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

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

CROSSREFS

Sequence in context: A157735 A332532 A252031 * A289855 A204691 A270762

Adjacent sequences:  A187308 A187309 A187310 * A187312 A187313 A187314

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 08 2011

STATUS

approved

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Last modified October 26 05:58 EDT 2021. Contains 348257 sequences. (Running on oeis4.)