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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 10 2011
STATUS
approved

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Last modified March 29 06:34 EDT 2024. Contains 371265 sequences. (Running on oeis4.)