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A185433 Number of (n+2)X9 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
1216284173329482, 745543958045415621, 223694029250999654095, 42451419931252675522287, 5686283998453160141912882, 573443108636317829849582612, 45497009931939204350899288292 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A185435
LINKS
EXAMPLE
Some solutions for 4X9
..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1..1
..0..0..0..0..0..0..0..1..3....0..0..0..0..0..0..0..1..7
..0..0..0..0..0..0..0..1..7....0..0..0..0..0..0..0..4..0
..0..0..0..0..0..0..0..6..7....0..0..0..0..0..0..0..4..5
CROSSREFS
Sequence in context: A282672 A337922 A072719 * A134692 A288286 A217683
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 27 2011
STATUS
approved

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Last modified May 20 08:05 EDT 2024. Contains 372703 sequences. (Running on oeis4.)