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A184206 Number of (n+1)X9 binary arrays with no 2X2 subblock containing fewer than two 1s 1
31707, 4556371, 518574936, 64377477751, 7795714368919, 952294826074262, 116023864377980183, 14148460147460008963, 1724850427268614620086, 210297145807804211632731, 25639101187522824504622401 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A184207

LINKS

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

EXAMPLE

Some solutions for 3X9

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

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

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

CROSSREFS

Sequence in context: A236062 A187728 A154471 * A193742 A206114 A252034

Adjacent sequences:  A184203 A184204 A184205 * A184207 A184208 A184209

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 10 2011

STATUS

approved

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Last modified April 18 14:46 EDT 2021. Contains 343089 sequences. (Running on oeis4.)