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A185430 Number of (n+2)X6 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
212298419684, 41910604337378, 4772160687307074, 378372621022753476, 22687513754718781985, 1081599389409258559731, 42451419931252675522287, 1407901157465200331154523, 40264870455486645310499349 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A185435

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..114

EXAMPLE

Some solutions for 4X6

..0..0..0..0..0..2....0..0..0..0..0..6....0..0..0..0..0..3....0..0..0..0..0..1

..0..0..0..0..0..6....0..0..0..0..1..2....0..0..0..0..0..6....0..0..0..0..0..4

..0..0..0..0..1..2....0..0..0..0..1..5....0..0..0..0..2..3....0..0..0..0..0..4

..0..0..0..0..1..4....0..0..0..0..2..2....0..0..0..0..3..6....0..0..0..0..7..3

CROSSREFS

Sequence in context: A127343 A108048 A108496 * A221263 A172614 A112431

Adjacent sequences:  A185427 A185428 A185429 * A185431 A185432 A185433

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 27 2011

STATUS

approved

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Last modified February 28 01:15 EST 2020. Contains 332319 sequences. (Running on oeis4.)