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A184196 Half the number of (n+1)X9 binary arrays with no 2X2 subblock containing exactly one 1 1
19172, 2668339, 327471410, 42079740149, 5360172454105, 685056630399242, 87501032165288029, 11179084602659460821, 1428175394298048190822, 182458818788944483329317, 23310253102420729752412513 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A184197

LINKS

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

EXAMPLE

Some solutions for 3X9

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

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

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

CROSSREFS

Sequence in context: A263024 A015302 A249106 * A210316 A323966 A035925

Adjacent sequences:  A184193 A184194 A184195 * A184197 A184198 A184199

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified July 15 20:00 EDT 2019. Contains 325056 sequences. (Running on oeis4.)