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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

R. H. Hardin, Table of n, a(n) for n = 1..10

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: A095431 A282672 A072719 * A134692 A288286 A217683

Adjacent sequences:  A185430 A185431 A185432 * A185434 A185435 A185436

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 27 2011

STATUS

approved

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Last modified January 25 01:44 EST 2020. Contains 331229 sequences. (Running on oeis4.)