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A223662 Number of nX4 0..3 arrays with row sums unimodal and column sums inverted unimodal 0
130, 29922, 5285887, 761845474, 93974096640, 10253839694278, 1013084819998517, 92199924066276051, 7830543600441814997, 626952495503328450002 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A223663

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A223872 A223797 A243480 * A224112 A184283 A246242

Adjacent sequences:  A223659 A223660 A223661 * A223663 A223664 A223665

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 25 2013

STATUS

approved

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Last modified May 28 22:08 EDT 2022. Contains 354122 sequences. (Running on oeis4.)