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A186837 Number of (n+2)X8 binary arrays with 3X3 subblock sums nondecreasing rightwards and downwards. 0
1421952, 33731024, 798816802, 17494747887, 235234097572, 3176962520030 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A186840
LINKS
EXAMPLE
Some solutions for 4X8
..0..0..0..0..0..0..1..0....0..0..1..0..0..0..1..0....0..0..0..0..0..1..0..0
..0..0..1..0..0..1..0..1....0..0..1..0..0..1..0..1....0..0..0..0..1..1..0..1
..0..0..1..0..1..1..0..1....0..0..0..0..0..1..0..0....0..0..1..0..1..1..0..1
..0..1..1..1..1..1..1..1....0..0..1..1..1..1..1..1....0..1..1..1..1..1..1..1
CROSSREFS
Sequence in context: A064871 A237397 A301557 * A054852 A242824 A204288
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2011
STATUS
approved

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Last modified July 18 13:57 EDT 2024. Contains 374378 sequences. (Running on oeis4.)