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A223959 Number of nX6 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing 1
84, 3906, 92734, 1718057, 30643468, 556027700, 10269723035, 191829887779, 3609049327918, 68212899813271, 1293084011261962, 24559344963113337, 467028467106529258, 8888318851289202078, 169249293097773923431 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A223961

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A035737 A035806 A017747 * A143402 A004379 A075906

Adjacent sequences:  A223956 A223957 A223958 * A223960 A223961 A223962

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 29 2013

STATUS

approved

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Last modified January 24 19:34 EST 2022. Contains 350565 sequences. (Running on oeis4.)